Quote:
Originally Posted by Pampered-Z
When the check engine light comes on does the car still run properly? Any hesitation? I chased the same condition, changed ( borrowed from a friend's car ) ECM and chip. Turned out the MAS was going bad and the condition kept getting worste until the MAS went bad enough to set a code.
Just be careful, you normally can't return electrical parts. You might be better off looking of a donor, or someone parting out car with same engine/trans.
What are you using to pull the codes? I use Diacom on 3rd gens, works nicely for reading the car while it's being driven and can check codes realtime.
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The MAS was bad and was replaced during the summer tune up because it would not pass emmisons without it. But the light still comes on. When the light is on it runs like S*** and the gas just disappears. you can almost watch the gauge drop. When the light is off it runs like a top. The codes were checked at the dealer and nothing showed up. thats what leads me to believe its the computer again. When I first got the car in 88 the computer was blowing every sensor, they finally replaced the computer and it was good for a couple years then started up again. The car was driven so infrequently since 92 or so I never bothered with it. But now that I am driving it on the weekends again I want to get this taken care of. I am afraid to drive to far because of it. Don't want to get stranded someplace.