SOURCE: rough idle stalls at low rpm's
hello first check your idle with the car running foot on brake see were your rpm reading is if your below 500rpm check your label underhood for your curb idle setting second see if theres a adjustment screw you can increase were your gas cable lever rest against your set screw underhood if you feel confident enough remove your iac motor idle air control valve if the bore were the end of the pintle extracts out to close has varnish builup our carbon it will stick creating vacuum leak type senario causing stalling rough idle sometimes even no start conditions good luck
SOURCE: 87 Supra idles rough and dies out
I would suspect a vacuum leak. At idle under high vacuum the air fuel mix is being leaned out until you have misfiring so bad the engine quits. The exhaust smells rich because even a lean mixture, if it doesn't light off, if full of unburned fuel. At road speeds, the vacuum is low so the engine doesn't care if there is a small leak somewhere. It is getting most of its air through the open throttle. Check all your vacuum lines but remember that even if every line is okay, it could still be leaking from an old cracked intake manifold gasket.
SOURCE: 1999 Subaru Legacy Sedan.. speedometer works
I finally fixed mine, on my 1999 Subaru legacy 30th anniv edition. . .
I removed the speedometer head, and resoldered the green connector on the board. Then I also ran a wire to duplicate the trace wire from the middle pin to the first connect (about 4mm). Problem gone.
email for more details if interested: mike(at)whiteley.org
SOURCE: rough idle stalls at low rpm's
check your transmission fluid,the motor will stall when fluid is low
SOURCE: 1997 2.2L base Cavalier idles rough and randomly stalls
Have they checked your TPS sensor as this is the most common cause for rough idles and stalls...
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