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Aero: cold start and CEL problems.
Posted by robsuomi [Email] (more from robsuomi) on Mon, 8 Sep 2003 09:04:16
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95' 9000 Aero, 5sp, TCS, 130Kms
I have been trying to correctly diagnose a cold start problem for a few weeks but with no luck. Symptoms: engine is cold, takes 4-5 cranks to fire up, then stalls immediately when any kind of load is applied. After a few more tries and holding high revs I can coax the car onto the road. After 5-10 minutes of driving she works fine.
The check engine light goes on during the starting/stalling process. Three codes are displayed; 2 flashes (MAP sensor), 3 flashes (Air intake temp. sensor) and also 6 flashes (O2 sensor). However, once the car has run for 30 minutes or so the CEL disappears.
So far I have: checked all hoses/vac lines and replaced the DI and plugs.
Symptoms still persist. I find it hard to believe that all three sensors would fault at the same time! Can anyone suggest what to try next?
Many thanks,
posted by 207.194.196...
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