No Power To Fuel Pump

If you there is no power to the fuel pump or the relay, then there may be a possible electrical issue with the vehicle. i just removed it from the plug, reterminated it and reinstalled it. I am not getting power to the fuel pump relay at all. There's the real problem. I have no power to the fuel pump and after much research, have decided that the neutral safety switch is the problem but not enough funds to pay for a new one. No more noisy lift pumps, cutting holes in your fuel tank, or quarter tank issues. The ground for the fuel pump is at the center console. No power to fuel pump power is at relay and times out in 3seconds but is not at the pump. But I noticed there is no fuse in the spot that says "Fuel Pump" on the fuse box diagram. 0 ranger - Ford Ranger Forum. After trying to identify where the break was, and realizing that the wiring for the pump ran through the cabin and the center console, I opted to run new power to the fuel pump from the fuse block. More likely, IMHO, is that the ground side of the fuel pump wiring is at fault. Fuel pump relay is clicking when I turn the key, but power isn't making it to the intank (verified with DMM). I have read in several online forums that there is a relay for the fuel pump. I have even replaced the ecu and nothing. Ford 460 engine problems: 1988 just quit on me on free way loss power it would idle but had no power had to tow home. hello, have a 1999 es300 thats getting no power to the fuel pump, Ive checked the efi fuse and cir opn relay and iv also checked the pump with 12v directly to it and it fires right up, that leaves me thinking theres something wrong with the fuel pump ecu, if this is correct exactly where is it lo. Run a voltmeter between the hot wire for fuel pump and the frame of car. The yellow wire that you jumpered to the black / red wire normally just supplies the coil in the fuel pump relay, not the fuel pump. If the wiring harness has an open circuit or short between ignition switch and fuel pump, that would be the condition you describe. i tried to start the car and it wint start: September 6, 2010 : Followup from the Pelican Staff: Power to the pump is controlled by the DME, which gets it's que from the turn signal switch. Noticed I could not hear the fuel pump turning on when the key was turned to the on position. Our Cummins C-8. 112,000 miles. no power to fuel pump - were is the fuel pump fuse × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. The vacuum gauge can also diagnose improper valve timing, burned or stuck valves, sticking choke, leaking manifold, improper fuel mixture and more. Diesel Power Products is your diesel performance headquarters proudly located in Spokane Valley, Washington. browse photos, prices and more for Genuine Kit, buy now!. No power to. Then it finally died. I have check all my sensors and have replaced the distributor. I am told there is another safety switch or fuse , somewhere between ignition switch and the regulator. Aha! Changed the PTO switch (part of the interlock system). aside from that, the pump makes no noise what so ever. New crank sensor. checked inertia switch first. No fire at all. 1) jumped the fuel pump, it runs. I dont hear the fuel pump prime itself when i turn the key on. Re: No Power to coil fuel pump I don't remember the details, but there was a lengthy message thread on here several months ago regarding repair/replacement of a charging resistor, along with a lot of theory on how it works. Eric - on your 81 Euro 928 - Porsche used the Air Flow Switch to trigger the Fuel Pump Relay. Re: '96 Discovery, no start, no power to the fuel pump, not the relay or inertia switch I found what the connectors are, the only one that is a possibility is c277, behind the fuse panel under the steering wheel. No power stall. well if you can emit some fuel in the intake somewhere 1/6 cup it should respond to cranking,prove its fuel related,then look for a pressure check valve on the fuel rail on engine you can ck. This particular picture (Gmc Sonoma Questions - No Power To Fuel Pump - Cargurus) above is actually labelled with: 05 dodge ram 1500 fuel pump wiring diagram, 1994 dodge ram 1500 fuel pump wiring diagram, 1996 dodge ram 1500 fuel pump wiring diagram,. I checked the fuel pump relay all fuses, kill switch, kick stand switch im running out of ideas! Burnt ecu??? And i badly need the service manual its a 08. fuel pump not kicking on so replaced fuel pump now theirs no power to fuel pump cant figure it out where is relay located how do i test it the fuse is good put in a new fuse just to play it safe still no power to pump im stumped pulling out my hair on this one please help me. The EGI Pump relay does not click. Fuel pump wiring will vary, but gray is widely used as the power wire to the pump. No pressure, bad pump. The airtech pump came in yesterday, so I changed it out. Is this normal? Where is the fuel pump fuse then?. I'm not getting NO power to my ECU and fuel pump and come to find out I'm getting no power to my Fuel pump and Eng Cont fuse (10) in the passenger fuse box under the hood. So we jumped the power bypassing the relay and the pump powered up after that. All the eStore orders can be picked up at your dealership at no additional freight cost. Fixed that and put the wiring back to how it's supposed to be and it's all good now. yes, you can swap relays with one with the same numbers. I run anywhere between 36psi and. 7L DOHC 2wd. easy fix tho. This is on a 2006 FLHTCUI. The control opening relay has 5 prongs. In it's 'open' state current does not get sent to the fuel pump. I'm thinking I need to drop my fuel tank (or remove my bed??) and replace/service my fuel pump??. Replied by wysetech on topic No power to fuel pumps There is a inertia switch behind the passenger front kick panel that is meant to shut the fuel pump off in case of collision. no service soon light,,i have also changed the fuel filter,,when i had the old one out i cranked it, but no spray came out just a gravity amount maybe,,i also checked the power to the fuel pump ,,no power in lines,,i had the truck serviced the day before for a trip ,,i ran a couple errands in the am and loaded up and left ,got about 3 miles and it just died ,,it wants to run and will just. But that won’t fix the mess California's made. Turn on the key and jumper the fuel pump test connector to ground as previously described. Also, the fuel pump will only receive power (when B+ and Fp are not connected) when the key is in the Start position or the AFM flapper door is open (air is flowing into the engine). This indicates a wide array of concerns, such as a dying battery, corroded connections or issues with headlights and wiper mechanics. The blk/grn wire would power the fuel pump fuse then the fuel pump. fuel pump not kicking on so replaced fuel pump now theirs no power to fuel pump cant figure it out where is relay located how do i test it the fuse is good put in a new fuse just to play it safe still no power to pump im stumped pulling out my hair on this one please help me. I have a 1996 Jeep Cherokee Sport with a 4 Lt engine. no power to pump. A fuel pump is a frequently (but not always) essential component on a car or other internal combustion engined device. I checked the fuel pump. i do not know if there is a relay though. So, I went to the relay,changed it. In fact, the fuel pump is one of the main problems we see at our service and performance shop. Eric - on your 81 Euro 928 - Porsche used the Air Flow Switch to trigger the Fuel Pump Relay. i only have that tank because the previous owner pissed someone off and he threw engine seize into the front tank so it was disconnected some time ago. 3 checked relay and fuses still get no power, have any idea how to fix this ? Answer: Lets start withe the "ECM B" Fuse (the most common cause) It is in the under hood fuse block, it is a 20 amp fuse. if it checks out then check the oil pressure sensor. I will drive it around for about a week and when i park somewhere like McDonalds and come back out to leave it want start, as if it was out of gas. seems good. Also, the Fuel Pump relay pin 87 sends 12 Volts to turn the Fuel Pump on. how do you know there is no power to the pump? are you checking at the pump? if so, pull out the wire diagram and trace the power wire back to its source. I checked them and they seem to be fine, not black or anything so it's not the fuse. Hi --have an annoying intermittent power failure to the fuel pu. I took it to have it scanned and they said to replace the fuel regulator sensor. It does sound like you may have a problem with the fuse block at the right strut tower. Tools The following special tools are used in the Hard Start No Start procedures described in this section of the program:. If you cant solve the power supply issue then you have no choice but to tap into another keyed source. The walboro works, I double checked it with a battery. I jumped the fuel pump to the battery with a switch, and it worked fine for al little longer, than it surprisingly cut off again, so I determined it wasn’t a bad wire connection, it had to be the pump. List of everything ive checked. Fuse is good as well. Normally $199. The power for the fuel pump comes from the main 60a fusible link, goes to the fuel pump fuse and from there to the fuel pump relay, and then onto the fuel pump itself. I then replaced the fuel pump module, and tested for power. So, the first. e Napa, Autozone, Advanced. Please help. (has all symptoms of a blown #22 fuse. I replaced the fuel regulator sensor, but after I put things back together, it just cranks but won't start. #87 is the power out of the relay to the fuel pump 15A fuse. I'm not getting NO power to my ECU and fuel pump and come to find out I'm getting no power to my Fuel pump and Eng Cont fuse (10) in the passenger fuse box under the hood. No power to fuel pump. Fuel Pumps / Regulator Technical Information Flow Chart for Externally Mounted Electric Fuel Pumps Holley Electric Fuel Pump Ground To accessories Oil Pressure Switch C P/N: 12-810 Ignition switch NC NO Starter motor Solenoid Battery Coil To distributor OIL PRESSURE SAFETY SWITCH It’s always a good idea to place a safety switch in the circuit. The oil pressure switch can also supply power to the fuel pump if the ECU fails to supply power to the fuel pump relay. Replaced fuel pump. But I noticed there is no fuse in the spot that says "Fuel Pump" on the fuse box diagram. Other electric fuel pumps are located in the fuel tank. com sells replacement electric fuel pumps for most vehicles. the car starts. Then it finally died. I have checked all relays and fuses. I have a 1995 Rodeo doing the same thing. I checked the power at the pump. So we jumped the power bypassing the relay and the pump powered up after that. 5 PSI and pump run. the rubber isolator material that holds the driveline center. trying to fix this issue. Normally $199. low voltage to inertia switch. Running lean and losing power as the more air gets crammed in there with no fuel. Did you replace the pump recently? Try swapping in a good used fuel pump relay first or jumpering 12V power to pin 87 on the FPR socket. Hey Y'all, Got a '94 1 Ltr. Diesel Ops is committed to providing our customers an unparalleled shopping experience. Power Steering Pumps. Ground at tank has been checked and ruled out. I am not getting power to the fuel pump relay at all. the cars died while driving. Do yourself a favor and replace that pump and it will solve your problem. 2007 chevy impala has no power to fuel pump and won't start, has new fuel pump, fuses and relay is good. Power from that one goes thru the switching contacts on the relay, then thru the inertial shutoff switch to the fuel pump. I've read that when the key is first turned on, the fuel pump power supply should pulse 12V for the first 3 seconds (IIRC 3 seconds) None the less, you should have 2 hot wires with the key on. Ford replace 4 in warranty. Then it finally died. Average repair cost is $390 at 120,000 miles. used code reader, got a pcm code and a pcm ground code. and when I tested the hot wire to the fuel pump I get nothing, even right when turning the key on. replaced a perfectly good fuel pump. Re: No power to fuel pump Post by TONY4848 » Mon Mar 26, 2012 6:36 pm Give these guys a call and find out all the information you need to replace it and if their prices are good buy one but at least you know what you need to do and you probable will get a warrenty with them or someone in the same market. checked fuel pump, had to. Disable power to the fuel pump: You can do this by simply removing the fuse that powers your pump. The wire coming from the fuel pump is the other ground wire. Re: '96 Discovery, no start, no power to the fuel pump, not the relay or inertia switch I found what the connectors are, the only one that is a possibility is c277, behind the fuse panel under the steering wheel. 17 sheriff's deputy patrol cars have had sudden fuel pump failures since 6/1/2010. You need a voltmeter, or at least a 12V test light. The rail pressure was only reading 18psi. Fuel pressure reads 0. Today(2 days later) I went to crank it and I could no hear the pump. 0L Coyote engine!. Unplugged the fuel pump and checked for power at the connector and there is none with the key on. The car has been behaving erratically for a while now. You'll find that many car relays have a diagram stamped on the case itself to identify each pin or terminal with a number. I checked the fuel pump relay all fuses, kill switch, kick stand switch im running out of ideas! Burnt ecu??? And i badly need the service manual its a 08. pump is newer, filter is newer. After checking all the obvious, fuel filter (replaced), relays and fuses, inertia switch, then finally fuel pressure at the rail. You'll be able to find out if the fuel pump relay, or the fuel pump Inertia Switch, or the fuel pump is the cause of the No Start Condition on your Ford car or pickup. Turning over, still no fuel. Faulty high pressure pump If the pump is faulty there will be a "low fuel pressure" problem. The B+ terminal in the diagnostic connector should only have power when the key is in the 'On' position. Then would start and run, made it home seem to clear up. Jump 12V at the pump read 72. 7 new fuel pump no power to it fuel pump relay fuse ok how to check relay thanks? You can remove the relay and take it to any auto parts store i. We really like the ride of the Polaris UTVs. Hi All, I am having a problem with my EFI fuel relays. replaced a perfectly good fuel pump. I had the engine running for a solid hour, generating power. This contact closure provides a "holding" circuit to relay CR1. I pulled the pump out and it needs to be replaced, however, I have another issue as well. 2 Find the wire (circuit) that feeds power (12 Volts) to the fuel pump and with a multimeter in Volts DC mode, verify that 12 Volts are reaching the fuel pump when you crank the engine. , but what I did notice is no check engine light came on unless I was cranking it over nothing when you turn the key only comes on as you are turning it over also on the fuel pump relay harness the oranges wire should be Hot all the time (I think) but am only getting. Has 1 vacuum line connected to it. The pump runs and. and my bike is in. Checked the safety lanyard, all the fuses and relays that I could find. Re: 2004 Mitsubishi Lancer no power to fuel pump If the camshaft isn't spinning while your cranking the engine, you have a problem with the timing belt. 2 Find the wire (circuit) that feeds power (12 Volts) to the fuel pump and with a multimeter in Volts DC mode, verify that 12 Volts are reaching the fuel pump when you crank the engine. and i changed my fuel pump and the fuel pump relay. Ive looked at everything i can think of in the car. Checked all wiring, battery and harness to tank and all looks good. replaced a fuel pump relay. trying to fix this issue. The wire to the fuel pump (green wire) is good, and gets power when bypassing the ECU. I connected power directly from the battery to the fuel pump and it will run. 2001 XKR NO POWER TO FUEL PUMPS, THEY DONT PRIME AT ALL, and the car wont crank I purchased a 2001 Jaguar XKR Convertible earlier this year, it ran and drove fine. Make sure you have a good ground on the black wire coming from the pump. alright, now i ran power to the pump. no power at the fuel pump relay either im stuck is there a security issue or vacuum issue?. No voltage or low voltage, bad fuse link, bad wiring, or connections. Easy online ordering and next-day delivery available with 24/7 expert product support. Location Of The Fuel Pump Relay Components Fuel pump in-line fuse -20 Amp. Lights,Horn,Turn`s,Fuel Pump,Dash, Turn the key on, hit the run/stop switch, push the start button and Nothing. I then checked for power at the fuel pump connector under the rear seat and it is not getting power when I turn the key. If there is power on 86 and 30, take a short wire and jumper power between 87 and 30, If there is no power then check your fuses, the ASD relay, and fuel pump ground. So he put new ignition, new sparks plugs,cable, Fuel injectors. Power from #30 should be connected to the main battery feed on the fuse block. I checked for +12 at the fuel pump, and I get zero. Funny thing is I tied my security into the control lead that powers that relay. Running lean and losing power as the more air gets crammed in there with no fuel. The rail pressure was only reading 18psi. What bike you running? On my wiring diagrams (K1 750 and K6 750) it shows power coming from a fuse through the relay to the pump. A fuel pump will run slower than normal if the fuel filter is restricting flow, if there is a voltage drop in the pump power supply circuit or if the pump itself is worn. So no codes/ faults, tacho does full sweep all lights come on. Clean Low Fuel Pressure Supply Line Cylinder Head Fuel Return Line Fuel Strainer Supply Line Fuel Supply Pump Suction Line High Pressure Pump Fuel Inlet High Pressure Pump Fuel Return Line PLV Return Line Banjo Bolt Special. Car will crank but not start. Fuse 14 gets it power through the fuel pump relay which is activated by the PCM. No power to fuel pump Buick Turbo Tech. The device in the pump is called an AFC (air fuel control) the afc is a diaphragm against spring pressure it prevents the fuel pump from supplying too much fuel until turbo boost is supplying the right amount of air to prevent black smoke. Always lowest price on Gas Tank Pad Traction Side Fuel Grip Decal Protector For Kawasaki Z1000 2010 13, processing orders both local and international. This particular picture (Gmc Sonoma Questions – No Power To Fuel Pump – Cargurus) above is actually labelled with: 05 dodge ram 1500 fuel pump wiring diagram, 1994 dodge ram 1500 fuel pump wiring diagram, 1996 dodge ram 1500 fuel pump wiring diagram,. Ford Crown Victoria fuel pump failures. I read the Toyota Hanes book and says the crankshaft sensor send a signal to the relay to give power to the fuel pump. Keep the pump exterior clean to help identify leaks. The walboro works, I double checked it with a battery. The EGI relay in the fuse box clicks. i live neat the outer banks and drove all the way up to maryland to pick it up and drive it back. The wire coming from the fuel pump is the other ground wire. Then would start and run, made it home seem to clear up. 6V, pump run for 3s. You should also be aware that on most models 1977 and newer, if there is a problem in the primary side of the ignition system, the fuel pump relay does not engage to supply power to the fuel pumps. has any one seen this. replaced a perfectly good fuel pump. (has all symptoms of a blown #22 fuse. I pulled the relay out, turned on the ignition and checked for voltage at all the sockets that the relay mounts in. 3 checked relay and fuses still get no power, have any idea how to fix this ? Answer: Lets start withe the "ECM B" Fuse (the most common cause) It is in the under hood fuse block, it is a 20 amp fuse. We found the solenoid was not opening fully which caused our engine to exhibit low-power and only moved motorhome at low speeds due to fuel starving. Cant hear it activate or anything when the key is turned. Following SM trouble shooting leaves me with a dead end as testing the battery side of the relays shows the fuel pump relay has no power going into it. Keep in mind when you're checking for power for the fuel pump that the computer only sends power for a few seconds when you turn the key on, constant power isn't supplied until the engine is actually running. When the fuel pump relay is off (not activating the fuel pump), the high current circuit is 'open'. The ranger would ride out with no problems for about an hour then eventually the carb would run out of fuel. I can unplug battery for about a week or so and go hook it back up and it starts with no problems. 7 new fuel pump no power to it fuel pump relay fuse ok how to check relay thanks? You can remove the relay and take it to any auto parts store i. The fuel pump was not kicking in so I bought a new one to find there was no power going to the pump. If this shows hot, you have 12v to fuel pump. This is the last problem stopping me from riding and I am getting restless. Been crawlin over this Tahoe for 3days. I can jump power to the intank pump and the pump will run. 620i won t start- no power to plugsfuel pump John Deere Gator John Deere Gator Have a 620i that won't fire. 6V, pump run for 3s. it was the power wire (big yellow one). So it's a no-brainer that a malfunctioning fuel pump is bad news. If there is no pressure, disconnect the fuel-pressure gauge and test the fuel-pump relay. A fuel pump is a frequently (but not always) essential component on a car or other internal combustion engined device. The wire coming from the fuel pump is the other ground wire. I've also checked the fuel pump relay which seems to be working aswell. I want to start with the fuel pump relay switch, which I think is located under the fuse box on the passenger side wheel weld. You should also be aware that on most models 1977 and newer, if there is a problem in the primary side of the ignition system, the fuel pump relay does not engage to supply power to the fuel pumps. no power to pump. - The city of Vallejo lifted a mandatory water conservation notice on Monday morning after PG&E brought in a powerful generator to power the city's water pump. No power is provided to the fuel pump and the vehicle will not start. I checked the fuse and the relay and they are good. Over at Bella Vineyards and Wine Caves, Schmaltz sent employees home for a day last week because there was no running water – they didn’t yet have a second generator to power a pump in the. Fuelab Prodigy Fuel Pumps use lightweight super-efficient DC brushless motors that feature powerful high flux density Neodymium rare earth magnets to reduce current draw when compared to the factory pump. I know I am getting power to the fuel pump signal wires just not the power wire. I diagnosed all the connections, and all appear to be good. Sp I got the "no power to the fuel pump" issue the other day. The bike turns over. On older engines, the fuel pump was mounted on the engine itself and driven by the camshaft. Every fuse and relay checks out ok. All of your tests need to be done within a second or two of turning the key on. It does sound like you may have a problem with the fuse block at the right strut tower. For a serious power boost, we offer nitrous oxide systems. I removed the battery, charged it up and tried to start. Turning over, still no fuel. A couple of weeks later my Jeep died going down the interstate. The 2000 Ford Contour has 6 problems reported for no power to fuel pump. i checked for power on the fuse and there is nothing. Grainger gives you a choice with various types of fuel transfer pumps with nozzles. I have even replaced the ecu and nothing. After being parked for about a week, I got in to start it and all it did was turn the engine over. No Fuel Pump Action: First is the check that the relay is functional. So, the first. 44 volts and it is constant. I've tested my fuel pump fuse and it is still working. I can't get the fuel pump to energize. Re: '96 Discovery, no start, no power to the fuel pump, not the relay or inertia switch I found what the connectors are, the only one that is a possibility is c277, behind the fuse panel under the steering wheel. The ranger would ride out with no problems for about an hour then eventually the carb would run out of fuel. However no power is making it to the pump. I've checked all the fuses and none are blown. and when I tested the hot wire to the fuel pump I get nothing, even right when turning the key on. No power getting to the fuel pump Here is the scoop: Started the car up on Saturday and let it warm up and in about 2 mins the motor just shut off completely. Put new fuel pump in, new fuel filter, new relay switch under the hood. The control opening relay has 5 prongs. if it checks out then check the oil pressure sensor. Rechecked the connections and jumpers and turned on the ignition, no voltage. The power for the fuel pump comes directly from the battery to the DME/fuel pump relay. 2003 Ford Expedition, No Run, No Fuel Pump Operation, Code P0231 Author Sparky Posted on March 13, 2011 June 14, 2016 Categories 2003, Engine Performance, Expedition, Find Answers, Ford, P0231 Tags Expedition, Ford, Fuel Pump, Fuel Pump Relay, No Run Condition, P0231. I have a 2000 ranger 500 6x6 has no power to fuel pump plz help. What are the lt/bl & wt/rd wires from fpdm. Ford Crown Victoria fuel pump failures. As far as trying to start engine with fuel pump harness jumped , as long as it is disconnected and jumper is on fuel pump side of harness (you may need a ground ) so no damage risk to harness back to PCM , you may try. 9 with no power to the fuel pump. e Napa, Autozone, Advanced. Power distribution box diagram PCM, Fuel injectors, Fuel pump relay, Mass air flow sensor. the car starts. If the electric fuel pump fails completely, the vehicle won’t run. Make sure you have a good ground on the black wire coming from the pump. he said it might need a cam position sensor or the ecu. There's the real problem. No power to any wires at the pump. I am told there is another safety switch or fuse , somewhere between ignition switch and the regulator. Worked for a little while, then died on me again. I have checked all relays and fuses. just put new fuel pump on my ranger thought the old one was bad. I put another one in anyway. New crank sensor. I took it out for a ride that night with no problems. If i jump the pump ( lol ) it will start pumping, but for some reason there is no power going to 1 of the relays and im not sure what could cause italternator?. This is how I know it is not getting any power. I removed the battery, charged it up and tried to start. List of everything ive checked. MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo. Do yourself a favor and replace that pump and it will solve your problem. In your testing, keep in mind, the ECM will not allow the circuit opening relay to power the pump unless the crankshaft is rotating. NO Electrical Power to Fuel Pump was created by dmpi1719 The fuel pump went out about 8 weeks ago. Bestgen knows the 22REs. No fuel coming out of the fuel line further confirms a BAD fuel pump. There is no point in having a relay then! Constant power for the fuel pump relay must come from the battery to a fuse, to the relay, to the fuel pump!!. Walbro performance fuel systems are designed to deliver the speed, power, torque and reliability you expect. This means they essentially pay for themselves in. I then traced the wire leading to the fuel pump and applied power from the battery and the fuel pump kicked in so this confirmed that the fuel pump stil works. Theres no power going to the pump when i turn the key on. Sounds to me that the pump is at fault then did you take the pump out of the car and hook it up directly to 12v from the battery as it should work then, just watch when connecting up to the live 12v's as might cause a spark so dont have it near any part of the fuel pump that soaked in petrol or your hands. The VP44 injection pump is designed to be fed by the lift pump for proper pressure and lubrication. I went through the troubleshooting here and have discovered that the in-tank fuel pump is not working (no whirring sound, disconnected the fuel filter intake line and with key in on position nothing came out). Eric - on your 81 Euro 928 - Porsche used the Air Flow Switch to trigger the Fuel Pump Relay. Thought for sure it was the pump. i checked the fuel pressure and had none. I have a 1996 Jeep Cherokee Sport with a 4 Lt engine. If your fuel pump relay is clicking, then the connection to the ECU and the ECU are probably OK. Replaced the fuel pump relay with a known working on, and jumped the relay position using 15 and 87, still no prime at fuel pump. These are for a 99 V6, should be the same or very similar to yours. If the fuel pump runs when the relay is bypassed, the problem is a bad relay or a fault in the wiring circuit that provides power to the relay. the cars died while driving. what could kill the power to the relay? will crank if you pour gas to. and my bike is in. MPI problem. I have a 1990 Ranger 2. Remember that on 92 or later models the fuel pump relay is located under the Mass Air meter. Anti-theft is not locked out, and there is power to the fuel gauge sending unit. I confirmed the relay was working and got a fuel pressure gauge and there was zero pressure when I turned the key on and couldn't hear the pump. The 404 relays are also for the fuel pumps, but if fuse blown, no go. Funny thing is I tied my security into the control lead that powers that relay. Please help. It points to all of that stuff between the car’s power system and the pump - relays, wiring, switches and such. Checked the safety lanyard, all the fuses and relays that I could find. hello, have no power to the fuel pump, tried jumping the relay out. had pcm reconditioned, replaced fuel inertia switch, new battery, turned the key and nothing happened.