Question about 2006 Nissan Sentra

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The car has a new starter, new battery, new terminals from the battery and have replaced the ECU BUT IT WILL NOT START. HELP

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You have repalced the ECU?? well now its a dealer only job to re-programme the immobilisor .Its all i can think of as these newer cars have the transponder built into teh ECU

Posted on Mar 23, 2011

  • 3 more comments 
  • rino_60 Mar 23, 2011

    the ECU has been programmed

  • Colin Stickland
    Colin Stickland Mar 24, 2011

    well iam not sure here as to programme the immobilisor the whole vehicle is done at the same time when ever i have had to have them done and the man comes around with a whole lot of expensive gizmos that cost him thousands of euros every year to up with the new cars ,then certain models need the breakdown truck and taken to the dealer as they use fingerprint reading of the authorised operative via a call back system over the internet linked to the factory .

  • bigboyremssy Mar 27, 2011

    please i am having the same problem. i have replaced my ecu but the car wont still start. how did you get yours working?

  • rino_60 Mar 28, 2011

    Yes but it still has issues starting, but what I do is turn the key one turn let it sit 3 seconds then push the gas pedal down just slightly and then turn the key to on wait till all the dings have completed and then turn it on when the RPM gets around the 2 I remove my foot from the pedal and it starts up it has worked for me several times.

  • rino_60 Mar 28, 2011

    have read too many things about Nissan and that the car has a poorly designed fuel system have read that people that have from 04 to 06 all have the same issue Nissan had a recall for the fuel pump a few years back but those people who have had it replace still have the same issue some said their fuel pump was replaced twice and still has a start up issue.
    Hope what I do is able to help you out with your car good luck.



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Hi, it sounds like the starter solenoid was not wired properly. You have 2 wires at the starter, right? The bigger wire goes to the big top post on the solenoid, right? The smaller wire is called the start wire and it goes to the smaller terminal labeled "S." Is that how you wired it? You also have to be careful when tightening the nuts on the terminals that the start wire terminal does not touch the other terminals and vice versa. Do you have the starter in the car now? Can you take a picture to send me?

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You should go to your nearest dealer and check/scan and analyze your computer/ecu, some of the sensors might not be working already and need to be replace.
In the issue of starter, if it clicks and the motor of the starter whines up, it means it is working fine, the problem would be the bendix drive/gear can't reach the flywheel to start the engine.
My suggestion would be to bring that car to your dealer to check the ecu/computer and if the starter assembly is for your car model( sounds like its not for your car).

Hope that solves part of your problem!

Thanks for using Fixya!

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