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Bad idle, low boost, and bad fuel economy??
Posted by Aaron Gilbert [Email] (more from Aaron Gilbert) on Wed, 25 Apr 2001 18:41:57
In Reply to: Well, I should have clarified...., Jay S., Wed, 25 Apr 2001 18:11:43
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I'm thinking it's not the turbo, myself. Has the O2 sensor ever been replaced? Air Mass Meter could also cause problems. 20 MPG is way for for anything except strictly city driving (and short trip at that).
You're sure you've eliminated all possible sources of vacuum leaks?
An exhaust problem can play havoc with boost levels, but thus far, with a hole in either rear muffler, or the headpipe, I still was able to get full boost, eventually. Just took WAY longer to get there, especially with the holey headpipe. I did just have the cat replaced, but had no problems with the original one at 250k miles.
Maybe you've posted this already, but have you tried swapping a known good APC valve/solenoid?
Though, I don't think that would cause fuel economy or idling problems..
Good luck!
Aaron Gilbert
1987 9000T 255k miles
Posts in this Thread:
- Clogged cat= no boost..., Jay S., Wed, 25 Apr 2001 13:22:20
- Re: Clogged cat= no boost..., Peter S, Thu, 26 Apr 2001 14:59:24
- Re: Clogged cat= no boost..., James F Reed, Wed, 25 Apr 2001 22:09:28
- Very very unlikely..., Craig, Wed, 25 Apr 2001 17:45:32
- Of course it can. n/m, Street, Wed, 25 Apr 2001 14:03:23
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