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RPO Z15.

1996 only.

Silver with black, red or grey interior.

LT1/A4 or LT4/ZF6....
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Re: Weird timing issue

Subject: Re: Weird timing issue
by bam on 2013/6/19 14:40:02

I am away on business for another week or more. Thanks for looking thru the logs, I know it is time consuming. You are right about there being lots of surging. The funny thing is that for several months it was almost gone, now it is back?? It is making me think it is an intermittent and light miss. I also wonder if it is caused by an injector injecting too much/little fuel or leaking. I checked plugs and the centers look great but around the edge there is a fine black soot. I also omed the wires and the injectors all were fine.

If I do as you suggested above what am I looking for? Should I data log after the above changes?
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