Its a screamer!!!!

QuantumMotorsports · 12-23-2000, 01:31 PM

I'm thinking it's not vacuum, but I'm not sure, reason I think it's not is because when you unplug the IA bypass motor it idles low. Is there some reason a vacuum leak would cause that? Does anyone know of a place to get a wiring diagram that shows location of grounds in the car? I also think it might have something to do with the TPS because sometimes adjusting the TPS will help for a while. I did notice that when you take the TPS off of the TB and twist the sensor like your stomping on throttle it revs the engine for you. I didn't realize the computer would open up the IAV when you stomp the gas. That is why I'm thinking it's TPS. Anyway, tell me what you guys think.

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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!!!

12-23-2000, 01:31 PM	#5
QuantumMotorsports Registered Member Join Date: Jul 2000 Location: Norman, Oklahoma, USA Posts: 597	I'm thinking it's not vacuum, but I'm not sure, reason I think it's not is because when you unplug the IA bypass motor it idles low. Is there some reason a vacuum leak would cause that? Does anyone know of a place to get a wiring diagram that shows location of grounds in the car? I also think it might have something to do with the TPS because sometimes adjusting the TPS will help for a while. I did notice that when you take the TPS off of the TB and twist the sensor like your stomping on throttle it revs the engine for you. I didn't realize the computer would open up the IAV when you stomp the gas. That is why I'm thinking it's TPS. Anyway, tell me what you guys think. ------------------ 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!!!