I took my car to auto zone and had troubleshooting done. They told me it was code 15 and for me to check the coolant sensor/low temp,then check wiring harness connector at the PCM for damage. I have done all of this also replaced a relay,alternator and my engine light still comes on and sometimes the heat guage wil rise above halfway when it is hot outside. What else can I check for
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There are several things that could be wrong. The problem with an Auto Zone scanner is that it's just a code reader. You'll need to troubleshoot the engine. Start by looking for a vacuum leak. Are the fuel and air filters clean? How about plugs and wires?
Start with the simple and replace your fuel filter, air filter and clean your MAF sensor. You can buy and MAF sensor cleaner at Auto Zone and the fuel filter also. While your there Auto Zone can scan your Saturn for any DTC codes that my be causing your engine performance issues, Auto Zone scan free of charge and if there is any DTC codes. They can give you the information to what needs to be done to get your Saturn running 100% again soon.
Thank you for using fixya and good luck. Keep me posted.
Idle problem most likey a Coolant Temp sensor & connector.Cam covers very common to leak around the sides & down into the spark plug holes.Also all saturn s-series 1.9 engine consume oil.Most 1qt. per 1500 miles some more some less.Service Engine Lamp has nothing to do with regular maintenance.It's a malfunction indicator lamp.If it's on there is Trouble codes stored in the ECM.Auto zone free scan with printout.Hope that helps
first problem, went to autozone. the guy that looked at your car was making pizzas last week. they pull codes and sell you every part you will buy. take the car to the saturn dealer and replace the bcm.