Please help!!!!
So I have a 1998.5 cummins. Installed an edge comp. drive it up the road and back. Ran fine. Then installed a fass 150 with a sumo pump. After installed bleed filters and lines. Cranked it up and it was loping and skiping. I just assumed it was air in line. So I blead all fuel lines. When I crack and injector line I can see it squirt fuel then it will stop. And then squirt etc. I should add when I first ran pump it blew fues. I didn't have a spare so I wrapped wire around to test it.
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What fuel pressure are you seeing? If you are blowing fuses you need to check the wiring as there is something wrong.
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Originally Posted by gh0stman
(Post 1132697)
What fuel pressure are you seeing? If you are blowing fuses you need to check the wiring as there is something wrong.
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If you are in a bind and need to test you can always t into the line and check it with a standard cheap pressure gauge, expect about 15-18ish psi. Now beyond that, I wouldnt do a thing with the fuel until your wiring is gone over. Could be crossing somewhere. My guess is you followed the fass directions to use the existing wiring? Chip, ecm, etc. were all good prior to this issue, I doubt they were the problem or that you fried them, just need to find the short, Or potentially test the pump with a test lead close where you can see the wires, maybe its internally messed up???? My guess would be call FASS, their customer service is excellent in diagnosing these kinds of issues.
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Originally Posted by davidthomas
(Post 1132722)
If you are in a bind and need to test you can always t into the line and check it with a standard cheap pressure gauge, expect about 15-18ish psi. Now beyond that, I wouldnt do a thing with the fuel until your wiring is gone over. Could be crossing somewhere. My guess is you followed the fass directions to use the existing wiring? Chip, ecm, etc. were all good prior to this issue, I doubt they were the problem or that you fried them, just need to find the short, Or potentially test the pump with a test lead close where you can see the wires, maybe its internally messed up???? My guess would be call FASS, their customer service is excellent in diagnosing these kinds of issues.
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Don't do that till you figure out the problem. No sense in wasting money if you don't need to.
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Originally Posted by gh0stman
(Post 1132742)
Don't do that till you figure out the problem. No sense in wasting money if you don't need to.
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If you hot wired the vp and got nothing it sounds now to your VP bit the dust.
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