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#1
03-09-2006, 09:59 PM
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TPS Problems?
I am noticing on my SVX that when I start the car the revs bouce up and down from about 1500 rpm to 500rpm and level out at about 500 rpms but then after driving around town for ten mins when I put it in park my revs consistantly stay at 1500 rpms.. Is this a bad TPS, if not what else could cause this? I am not getting any CE light...
Thanks guys
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Subyluver '92 Subaru SVX Ebony 216k miles  (Magnaflow Custom Cat-Back, ES Stablizer Bushings, Permacool Relocator, 2.5RS FPR, SS Brake Lines, EBC Green Pads, Raceconcepts D/S Rotors, Pirelli P-Zero Nero M&S)  (To-do list Koni Struts & Springs lacking funds) 
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#2
03-09-2006, 10:29 PM
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I wish I could help more, but I think I may have had a bad TPS on my old SVX. The tell tale sign was major hesitation from a stop to acceleration. Could be a TPS problem.
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The member formerly known as Civic_Slayer 1992 "Robins egg blue" SVX Originally Claret 147k- CURRENT 1992 Pearly 187K and climbing (11-91) #964 *retired 1992 Pearl SVX 122500 miles #86 FASTAR THAN THE OLD ONE.*SOLD  Everytime I get into my car, it always reminds me that it has POWER
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#3
03-10-2006, 05:25 AM
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Your problem sounds more like the idle air control valve (IAC) or the Aux Air control valve. The aux air control valve is open when you start the car cold. It provides extra air for the high (1500 rpm) cold idle. As the car warms up, the valve closes and brings the idle down to 610 rpm. The IAC is then active and holds the idle steady at 610 rpm. The computer drives the IAC to maintain that idle speed. I'd start by cleaning these items. If you look in my locker, I have a procedure there with photos.
Good luck.
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Bill 94 SVX LE 130,000mi
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