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QuantumMotorsports · 01-31-2001, 12:19 PM

RMARIANI - Have you tried this? While it is idling high, disconnect the Idle Air Bypass Valve. If the engine idles down, you know it is the computer. I've never heard of a vacuum problem making the computer increase the idle speed. And there is no reason for it to either. If the computer is causing the motor to idle high, it is either incorrectly set TPS. Or a ground problem somewhere between your TPS and your computer. Best place for that problem to occur is the connector that GreenLX was talking about. I have cleaned my connector and have no more problems at all. I am almost positive that this is the problem.

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Michael Black
Quantum Motorsports
Norman, Oklahoma

1988 Merc Cougar 5.0 HO, P&Ped heads, 2.25" custom mandrel bent dual pipes, T5 five speed tranny
15.43 @ 91.08mph (not shabby for a 3600 pound car)
60' 2.453 Street tires suck!!!

01-31-2001, 12:19 PM	#8
QuantumMotorsports Registered Member Join Date: Jul 2000 Location: Norman, Oklahoma, USA Posts: 597	RMARIANI - Have you tried this? While it is idling high, disconnect the Idle Air Bypass Valve. If the engine idles down, you know it is the computer. I've never heard of a vacuum problem making the computer increase the idle speed. And there is no reason for it to either. If the computer is causing the motor to idle high, it is either incorrectly set TPS. Or a ground problem somewhere between your TPS and your computer. Best place for that problem to occur is the connector that GreenLX was talking about. I have cleaned my connector and have no more problems at all. I am almost positive that this is the problem. ------------------ Michael Black Quantum Motorsports Norman, Oklahoma 1988 Merc Cougar 5.0 HO, P&Ped heads, 2.25" custom mandrel bent dual pipes, T5 five speed tranny 15.43 @ 91.08mph (not shabby for a 3600 pound car) 60' 2.453 Street tires suck!!!