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Re: My 1990 900 turbo needs a new computer
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Posted by AzSaabguy [Email] (#2820) [Profile/Gallery] (more from AzSaabguy) on Wed, 28 Apr 2021 14:54:08 Share Post by Email
In Reply to: My 1990 900 turbo needs a new computer, AzSaabguy [Profile/Gallery] , Wed, 28 Apr 2021 14:35:55
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I don’t have the failed emissions numbers in front of me ( they are in the car, at the mechanics ), though I do recall that the car failed all 3 of the categories, badly!
And one more thing I failed to mention, the check engine light came on about a year ago, and hasn’t gone off since, in other words it has stayed on. Another mechanic I used at the time, said not to worry about it. Though my current mechanic thinks it’s an issue ( both the failed emissions, and the check engine light ) with the car thinking the throttle is somehow wide open on full, hence the check engine light! ( the car uses a ton of gas BTW ).
And yes, my new guy replaced the oxygen censor as a first idea of fixing the problem.
On the question of timing, I haven’t had a tune up in a long time. And on the issue of a exhaust leak, I did recall thinking I smelled exhaust, but my new guy didn’t seem to think there was a leak.
I’m going to show him all the ideas you folks have posted, and see what he thinks!

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