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Diagnosis...any suggestions are great

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eclipsers-t

15+ Year Contributor
158
2
Dec 7, 2004
Augusta, Georgia
Just installed the rebuilt motor back into the car and it is not running correctly. Here is the setup:

Wiseco 8.8, Eagle rods, stainless steel valves, bronze valve guides, Fidanza adjustable cam gears, Crower stage 2 turbo cams, Crower springs and retainers, EGR blockoff kit

I capped the pcv valve vacuum and the egr ports on the valve cover and intake. The valve cover is breathing through a oil catch can.

The problem:
The car sounds like it is misfiring and it is running extremely rich (smell of gasoline is strong and the spark plugs are black along with the black smoke from the exhaust). I have checked all the vacuum lines and all the sensors. The car does not want to run without giving it some gas to keep it running. It has a very rough idle. After running it just for a minute, I pulled the plugs and one of the cylinders had smoke coming from it.

Any suggestions on things to check or that might need to be corrected would be greatly appreciated.

Thanks,
Andrew
 
What's your fuel setup?
 
I'd make sure the cam gears are dialed to zero and re-install the PCV system. Then I'd check your timing.

Sometimes it'll run a little rough when everything is brand new, but it shouldn't be that bad.
 
do you have the turbo on yet? because if your running the upgraded fuel system, turbo cams, and low compression w/out the turbo im not too sure that it would run the greatest. it should at least idle though.
 
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