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Old 03-08-2016, 10:54 AM
charlesabrn charlesabrn is offline
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1999 Quest
2009 Altima Sedan
Join Date: Feb 2016
Posts: 6
Default 1999 nissan quest ECM questions

I have to do a trouble shooting from the ECM terminal. When doing this I encountered some problems I hope some experienced people can point me in the right direction.

1 the manual says the first thing to do is to remove the ECM harness cover(see attached photo). However after I unscrewed the bolt that holds the cover, I was not able to start the car. The engine cranks but not starts. Also OBD reader was not able to establish connection. The problem is gone once I re-tightened the bolt.

2 the 2nd question is when the bolt is fully unscrewed, it did not come off. I am afraid it could lead to some damage if I forcibly remove the bolt.

Any help is very much appreciated!
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