| Re: '92 LT1 idle issues (long post) |
Subject: Re: '92 LT1 idle issues (long post) by bogus on 2010/1/29 4:01:20 Ron, Welcome aboard! How much does the idle wander? You see, the opti will cause that. Is there a high RPM miss? IF so, the opti will cause this, too. The opti has one weakness - moisture. The waterpump leaks on it, and coolant gets in, causing carbon tracing. Then comes the war... the engine controller is fighting a battle with the dreaded miss. When the tracing gets bad enough, it will cause a miss at idle. The computer compensates for it by retarding the timing. The miss clears and the timing sets back to spec, miss returns, the circle jerk continues. Is it the original opti? If so, I would be very suspect of it. If time hasn't killed it, mileage will. |
