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Old 11-22-2006, 06:02 PM   #73 (permalink)
DoctorDex
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Join Date: Jul 2005
Location: Edmonton, AB
Drives: '91 VR4 - RIP
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Default Re: Lean Misfires at 2700-2800 rpm

Quote:
Originally Posted by magn1t
You've probably got an ignition fault.

That causes the tach to jump and for the AFR to spike.
I'm interested in this idea. Does anybody know what else can go wrong in the stock ignition system that could cause the symptoms we've been having?

I replaced my coils, wires & plugs with the hope of fixing the problem - no go.

That leaves PTU and ECU, but both of these problems usually present differently.

Declan
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'91 VR4 - Rebuild in progress: Mods TBA.
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