Question about 2002 Saturn Sl
What causing of my service engine light on on my 2002 saturn sl1?
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Posted on Jan 02, 2017
Some codes are HARD codes & some SOFT codes. The hard code are stored in the computer memory because "something was wrong and is wrong." A soft code is when an issue happened but vanishes.Sounds like you might have something soft.You'll need that scanner hooked up when that light comes on to check the specs of the car.
Posted on Feb 03, 2009
It could be any of the sensors. Take it to any auto parts store that runs the diagnostic computer on it for free and do that. More than likely it will be one of those sensors. I had a oldsmobile that i had them check and it ended up being the MAF sensor. there are many sensors connected with the service engine light.
Posted on Feb 25, 2009
For old models, Saturn/GM also used the same material
fiberglass gasket in your model, you almost certainly have a leak from
a crumpled, sucked-in gasket as I suffered (and many others). I would
say going to Saturn dealership to make repairs is probably not good
idea if they are going to put in the same GM intake gasket part. Maybe
possible to specify Felpro gasket with whatever shop you go to if you
don't do the repair yourself. I would not go too long with your car in
that condition as there is localized leaning at your cyl-3, that could
cause a burnt exhaust valve there.
The exhaust is extra hot venting out that cylinder. P0303 is misfire at cyl-3. Mine was P0301 (cyl-1). You may get P0507 once in a while when PCM fails to control the fast idle caused by the leak under certain conditions. Most of the time, it is very slow idle caused by 3 cylinders running. You run smoother in cold idle because the IAC opens up to increase idle and end up lowering the manifold vacuum, so the reduced vacuum causes less leaking at the failing intake manifold gasket.
I'd say try cleaning everything with your ignition before replacement; Idle problems could be caused by engine coolant sensor (ECTS). Are you sure it was changed? Did they put on a new wire connector along with it?
Posted on Dec 29, 2009
Service engine light is telling you there is a problem, You can go to a local auto parts store like advanced auto parts or autozone, and they offer free code reading and they can turn off the light.
Or if you would like to know what the problem is you can take it into a repair facility
Posted on Apr 04, 2010
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