 Saab 1995 900s - Check Engine Light |
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 Jan 18 2010, 08:45 AM
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#1
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Newbie  Group: Members Posts: 2 Joined: 18-January 10 Member No.: 3,236 Make/Model: Saab 900S Year: 1995  |
I have a 1995 Saab 900S with the check engine light on. Sometimes the light will come on and stay on for a week. Then, the light will go off for a few days or a few weeks. I have taken my car to two Saab dealers and several other mechanics. When a diagnostic tool is used no code appears.
We have already replaced the oxygen sensor, checked the catalytic converter, replaced hoses and the air intake O rings, installed a new battery, and purchased a new gas cap. What else could be causing this problem? The car has never missed a service check and has been properly maintained since it was purchased. Thanks! |
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Jan 19 2010, 08:29 AM
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#2
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 Crew Cheif/Site Admin  Group: Admin Posts: 2,656 Joined: 21-May 03 Member No.: 3 |
Have you had it checked for codes when the light is on if not that would be the next step if you have had it checked with the light on and no codes were present then you have a defective PCM. It is turning on the light when no codes are present, replacing it will be expensive so you may not want to repair it unless you can find a used one.
-------------------- ASE Master Tech
Advanced Engine Performance GM & Chrysler Certified Tech DOT Inspector 30+ Years experience Proud Grandfather Retired Tech and small business owner of Service stations and auto repair shops Previous employment as Tech and Service Manager at GM and Chrysler Dealers |
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Jan 19 2010, 06:28 PM
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#3
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Newbie Group: Members Posts: 2 Joined: 18-January 10 Member No.: 3,236 Make/Model: Saab 900S Year: 1995 |
Thanks! I appreciate your help. Now we have another option to check.
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Time is now: 6th September 2010 - 01:49 PM | |
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