nissan sentra 2.5 eng

Asked by rr70 Nov 09, 2013 at 03:39 PM about the 2004 Nissan Sentra SE-R Spec V

Question type: General

car don't start  turn over i change fuel pump, crank sensor,still same a local mecanic toll me that is may be the computer or E C M .this problem star ocassionaly some times don't start and minutes later it will and the problem go a way for some days but now nothing some body have any advice thanks. Alex.

2 Answers
3,325

L_R answered 11 years ago

Could be anything. Starter, key assembly, ecm, computer. Do you hear the starter? Do you hear the fuel pump kicking in before starting? Is the car struggling to start or no noise at all?

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745

Eliezer answered 11 years ago

Is your Service Engine Soon light on? Check the codes. It's not unusual for these cars to blow both the crank and cam position sensors since they're identical twins and the stock ones are made of plastic, as are the replacements from Advance and Autozone. Getting them from the dealer or from NAPA is the way to go. If you don't hear the fuel pump priming when you turn the switch to ON and get no spark, or if the ECU fails to communicate with your OBD2 scanner then that's the ECU...

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