Posted on Mar 28, 2010

I have a 99 saturn sl2 is running rough i`ve replaced plugs,wires &COILS STILL HAS A ROUGH IDLE ONCE YOU GET GOING IT RUNS GREAT

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Anonymous

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Posted on Mar 30, 2010

Anonymous

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Try replaceing the ECT sensor. Mine was doing same thing, this SOLVED my problem!!

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Anonymous

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Posted on Aug 13, 2010

SOURCE: I have a 99 saturn sl2 is running rough i`ve

I would guess it's fuel injectors that need cleaned but I found a great fuel injector cleaner. I believe it's Chevron Techron Fuel System Cleaner.

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tip

Saturn S series runs rough

It is very common on ALL SATURN S series vehicle for ignition module failure. Usually the symptons are running rough and possibly a check engine light with misfire codes-P0300,P0301,P0302,P0303,P0304.
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