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How to check engine codes?

6300 Views 17 Replies 6 Participants Last post by  master13g
I know I dont have a sentra, but both my mom and my girlfriend have sentras, both which seem to be running quite strangely lately. Moms car under warranty so thats goin right to the dealer, but girlfriends car is kinda messed up. Pickup has gone down and its burnin oil kinda quick.. i think it may be the O2 sensors. Can somebody please tell me how to get the checkin codes? I know with mmost american cars u can put a wire in the diagnostics under specific jumpers and turn the key to ON and it will reveal the engine error codes, but i have been readin on how to get it off this 96 sentra, and it makes no sense to me. Unscrewing the entire unit and turning it?? Somebody please make some sense of this for me. Thank you
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If my memory is correct.

Its really simple. Once you pull the ECM out, which is right behind the radio console on the floor board, you should see a screw in the back left hand corner. Grab a flat head screwdriver and turn that screw completely clockwise, then wait about 2 seconds, then turn that screw completely counter-clockwise. Now look at the check engine light and it will be blinking. Count the number of flashes, there are two sets, first count the slow then the fast. Say ... 3 fast and 2 slow ... Now if you have a Chilton (Sp?) you can find what that code is by looking it up. Hope this helps even though its not your load. Plus im no expert, so I might not even be right. But it worked for me.
No problemo

Yeah its not that simple. Actually it really is just a little work. Good luck.
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