Question about 1998 Saturn SL
Have changed O2 sensor,EGR, and Air cleaner.
You have a bad idle air control valve it is located to throttle body next to the throttle position sensor
Posted on Dec 07, 2012
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Posted on Jan 02, 2017
choke stuck . check and see if the car has a senor on the carb and spray around the base of the carb . but i think the high ide senor is bad .
Posted on Jan 21, 2009
SOURCE: EGR Valve, O2 Sensor
Absolutely a bad o2 sensor can cause problems with performance. If you replace one it is highly recommended to replace both or all four depending on your vehicle. If one o2 sensor is making your vehicle run rich you will burn more fuel and in return increase the amount of carbon or unburnt fuel if you will in your egr valve you could probably get away with cleaning it but I would recommend replacing it, it will save you from having to pull it off again. Check your catyletic converter because long exposure to carbon will mess it up.
Posted on Jun 06, 2009
one it could be a valve not producing the right pressure.faulty emission system,or defective pcm or information system.i hope this helps.
Posted on Feb 10, 2010
you might want to check the intake for leaks-let the engine run-while running spray some brake cleaner around the intake-if the engine boggs down or dies that means your intake gasket is leaking and needs replaced-this is very common
Posted on Feb 17, 2010
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