Won't Start (fuel system work)
#16
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it seems like no one seems to have an idea of whats going on, my dad and I think like the injection pump doesnt seem to wanna take the fuel because it doesn't seem to flow much through the clear tube when it cranks over, the guy who replaced the injection pump may truck may hook up something inline with the pump to see if its getting signal
#18
Do you have a drawstraw installed? the "stock " fitting on tank will sometimes allow air into system. When I installed my air dog 100 I tryed to sqeek by without a drawstraw.... have 1 on it now. Had what I thought was a air leak... loosing prime after 2 tanks of fuel were run through new system without a problem. I checked banjo washers, all fittings, check valve in return line, installed drawstraw and still problems.Was getting ready to replace o rings on injectors when I decided to get codes pulled. Ended up being 0216 dead V.P. I feel your pain, Nate
#19
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I don't have a drawstraw but I ordered a Jeep Liberty fuel tank module today to swap in it since I dropped the tank yesterday, I think the injector pump isnt getting a signal to turn on, the relay is good, is there a way to test if its getting power other then the thing from the dealer,
isnt the fuel shut off solenoid built into the pump?
isnt the fuel shut off solenoid built into the pump?
#20
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I tested the two connections on the injection pump harness, circuit 1 and 2, they are the fuel injector pump data link positive and negative and I only got like 1 to 2 volts, I think I should be getting 12 volts from it
#21
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I tried this and there was barely any change in voltage, maybe a volt
this is off Bluechip Diesel
OR........the best way to be sure the VP 44 is getting battery voltage, is to verify that there is battery voltage to the removable plug on the injection pump. Remove plug and hold it so it looks like a smiley face. The bottom right pin is #7, batter voltage. The bottom left pin is#6, ground. Be sure to verify voltage during the “start” function of the ignition switch as well as the “run” position.
this is off Bluechip Diesel
OR........the best way to be sure the VP 44 is getting battery voltage, is to verify that there is battery voltage to the removable plug on the injection pump. Remove plug and hold it so it looks like a smiley face. The bottom right pin is #7, batter voltage. The bottom left pin is#6, ground. Be sure to verify voltage during the “start” function of the ignition switch as well as the “run” position.
#22
I tried this and there was barely any change in voltage, maybe a volt
this is off Bluechip Diesel
OR........the best way to be sure the VP 44 is getting battery voltage, is to verify that there is battery voltage to the removable plug on the injection pump. Remove plug and hold it so it looks like a smiley face. The bottom right pin is #7, batter voltage. The bottom left pin is#6, ground. Be sure to verify voltage during the “start” function of the ignition switch as well as the “run” position.
this is off Bluechip Diesel
OR........the best way to be sure the VP 44 is getting battery voltage, is to verify that there is battery voltage to the removable plug on the injection pump. Remove plug and hold it so it looks like a smiley face. The bottom right pin is #7, batter voltage. The bottom left pin is#6, ground. Be sure to verify voltage during the “start” function of the ignition switch as well as the “run” position.
As far as jeep liberty drawstaw.....Why did you go with that? I think you could have gotten by with just a #1. Check your tank to make sure vents are not plugged with dirt etc.. There is a small red or back fact. plug installed at fact. on top of mod. that should have been removed and sometimes is not also.Nate
#23
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I meant there's only one volt, should there like around 12 volts? I've been told draw straws aren't that great and I say that an easier way to go. What about a small plug?
#24
As far as how many volts you should have..... I'm volt meter Illiterate I'm just going by what blue chip states if #7 wire will light up test light in start and run position your good to go. Nate
#25
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well I installed the Jeep Liberty module in the fuel tank and fuel stays in the clear line unlike it did with the factory module so i say thats a good sign
#27
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I found this information somewhere online last night
"On the ECM you have a red/wht wire at pins 48 and 50 they need 12v. On the inj pump pin 7 red/ltgrn 12v. Grounds are pin 6 (injection pump) and pins 30 and 49 on ecm, all are blk/tan."
Like I said above, pin 48 gets 12 volts but the one on the injection pump and pin 50 on the ECM doesnt have 12 volts
"On the ECM you have a red/wht wire at pins 48 and 50 they need 12v. On the inj pump pin 7 red/ltgrn 12v. Grounds are pin 6 (injection pump) and pins 30 and 49 on ecm, all are blk/tan."
Like I said above, pin 48 gets 12 volts but the one on the injection pump and pin 50 on the ECM doesnt have 12 volts
#28
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well alot of you'll may think I'm stupid for what I'm about to say but here it goes, Well I found where to two wires for my computer go together and fixed that short but I didnt know 5 pole relays control two different things, in short, the relay for my fuel system was half bad and I didn't check it since my fuel pump work, well 3 weeks, 1600 bucks later, truck is fixed
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