No power and ruff idle

B

blue2002

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Joined
Feb 4, 2011
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120
After resetting my apps by pulling the negative off the batteries for a hr.

After about a minute it starts lopeing.

I loosened each injector. When I came to injector 3 it didnt change the idle. So I swapped it out with the 4 th injector.

It stayed on number three not changing the idle. Number for did when I broke the line loose.

There is fuel coming out of 3.

I also swapped out the injector tubes.

It still stays on number 4.

Any ideas
 
If you verified fuel comes out of #3 and you swapped a known good injector over to #3 and nothing changed then I would check compression should be around 240 psi and 255 psi for H.O.

Have you got excessive blowby coming out your crankcase breather or oil fill?
 
blue2002 said:
After resetting my apps by pulling the negative off the batteries for a hr.

After about a minute it starts lopeing.

I loosened each injector. When I came to injector 3 it didnt change the idle. So I swapped it out with the 4 th injector.

It stayed on number three not changing the idle. Number for did when I broke the line loose.

There is fuel coming out of 3.

I also swapped out the injector tubes.

It still stays on number 4.

Any ideas
Click to expand...

THis issue remains on the #3 cylinder correct?
You put injector #4 in to cylinder #3 and you got no change.
and you put injector #3 into cylnder four and it changed when you cracked the line correct?

Sorry got a little confused with what you meant by it stayed with #4
 
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