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How to check engine codes?

6303 Views 17 Replies 6 Participants Last post by  master13g, 
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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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EGR Code 32 in 94 Sentra

What can a bad EGR do? I live in Texas so I'm not too sure on the emissions. Will a bad EGR system cause a performance loss or could it damage the motor? If the EGR system was removed, would the car still pass inspection?
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What does it take to fix it? How much? And, what tests can I do to pinpoint the issue? A shop told me that they'd have to put diagnostics on it and that my intake & exhaust caused the problem... why would intake & exhaust cause the EGR to go bad? The car has 175,000 miles, is it just about time for it to die?

Thank you,

Dan
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