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Random stalling - update - running rich - stage4 ECU Posted by Jake [Email] ![]() ![]() |
I have posted a few times about a stalling issue with my 95 900set stage 4 ECU. The car stalls at random while driving and at idle. If I try to start it right away, it will not start. I have to wait a few seconds, and then it will start.
I have come up with the conclusion that the car is running very rich. I feel that the engine is choking itself with too much fuel. Yesterday I was driving along, it stalled, and I noticed two things... the smell of gas... and a big backfire when I was trying to start it. The backfire has happened twice. The plugs are brand new and gapped properly. I have a DI cassette comming in the mail soon for a spare, and to rule it out as the problem. The car has a brand new catylitic converter as well, because the old one was ruined by the car running rich(which at the time I thought was caused by a rotted vaccume line to the FPR).
The way I see it, there are two things that can cause these problems. 1. A bad O2 sensor, and 2. A bad ECU.
Is there anything else that I should look out for? Is there any good way to test the O2 sensor?
Thanks,
Jake
posted by 66.189.1...
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