88' rx7 GXL n/a NOT IDLING RIGHT!!HELP
#1
MEOOOWW-cat back exhaust-
Thread Starter
88' rx7 GXL n/a NOT IDLING RIGHT!!HELP
hello. i have a 1988 rx7 gxl n/a..i have a video posted on youtube with my problem (http://www.youtube.com/watch?v=fv7lGHq2C9Y) it starts up beautifully. if its cold it revvs up till its warm.. if not then it just idles around 1500rpm.. but it dips down a notch. comes back up...dips down.. and back up to 1500 and repeats... i found out today that if the headlights are on it idles just fine....weirddd
Last edited by RawrZac212; 03-22-11 at 10:15 PM.
#4
This sh*t burns oil!
iTrader: (7)
Vac leak makes engine idle up. Ecu sees 1volt on the tps(idle position) so it does the decel fuel cut till the engine is around idle speed then stops, vac leak allows engine speed to pick back up and repeat. The ecu will also do this when the TPS is not properly set or is malfunctioning.
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