Rotary Car Club - View Single Post - What could cause multiple TPS's to go bad? (S4 n/a)

NoDOHC · 12-14-2008, 12:21 AM

I don't know if the idle problem is your TPS or not, but the voltage should run about 0.6-0.9V from ground to the center pin (I forget what color it is and I have no stock s4 cars to look at anymore) when the throttle is closed.

EDIT: This is done with the TPS plugged in and the ignition switch in Run (with eingine running or not).

By the way, I would suspect a vacuum leak for the poor idle. If it is idling at 3,000 rpm, the BAC should be shut (trying to idle it down).

It really is a pity that you don't live a little closer.

12-14-2008, 12:21 AM	#3
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	I don't know if the idle problem is your TPS or not, but the voltage should run about 0.6-0.9V from ground to the center pin (I forget what color it is and I have no stock s4 cars to look at anymore) when the throttle is closed. EDIT: This is done with the TPS plugged in and the ignition switch in Run (with eingine running or not). By the way, I would suspect a vacuum leak for the poor idle. If it is idling at 3,000 rpm, the BAC should be shut (trying to idle it down). It really is a pity that you don't live a little closer. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)