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Old 09-30-2005   #12
Outlaw1
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Join Date: Jul 2005
Location: Corpus Christi, Texas
Posts: 415
Re: Suddenly super lean while at cruise

Quote:
Originally Posted by scheides
As this happens, my tach jumps around spurradically. Not much, but if I'm decellerating, then accellerate, as I accellerate the tach will jump up 150-300 rpms.
A flickering tach is a tell tale sign of an ignition problem. Usually it's a bad wire but a bad coil will do the same thing. I'd swap another set of plug wires onto the car. I noticed the water sitting in the top of the strut tower. Was there water on the valve cover too? Look down in the spark plug holes and see if there's any sign of tracking on them. Not to say that's the only possibility, but that's where I'd start.
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'07 Z06 Black/Black 2LZ
Headers, CAI, Tuning, 160 T-stat & 125hp dry N2O kit.

10.48 @ 136.86 w/1.65 60'
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