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How to tell if ECU faulty ?

  • 03-02-2015 7:19pm
    #1
    sally365
    Registered Users, Registered Users 2 Posts: 179 ✭✭


    Hi,

    Is there signs when a ECU is faulty? I've a Nissan Micra 03, thats only going 5mph.

    A mechanic said the ECU was faulty but I'm not convinced, and it wasn't communicating with the Throttle.

    Error codes: Throttle Body Senior


Comments

  • #2
    johnayo
    Registered Users, Registered Users 2 Posts: 1,718 ✭✭✭johnayo


    The ecu is a tricky one to diagnose. If you have a doubt, then go and get a second opinion. Hopefully he is not depending on an error code for a throttle sensor to condem an ecu.


  • #3
    sally365
    Registered Users, Registered Users 2 Posts: 179 ✭✭sally365


    I got a new throttle body cheap, and it didn't solve the issue.

    Driving me crazy. - No idea what to do next, replacement ECU maybe and auto key reprogramming is the only solution


  • #4
    johnayo
    Registered Users, Registered Users 2 Posts: 1,718 ✭✭✭johnayo


    Get it diagnosed properly first. What happens if you put in a new ecu and you have the same problem.
    It may well be a wiring issue.


  • #5
    georgefalls
    Registered Users, Registered Users 2 Posts: 791 ✭✭✭georgefalls


    Bite the bullet and take it to a Main Stealer, their diagnostic gear will tell you for sure if the ECU is kaput.


  • #6
    joujoujou
    Registered Users, Registered Users 2 Posts: 13,976 ✭✭✭✭joujoujou
    Unregistered Users


    georgefalls wrote: »
    Bite the bullet and take it to a Main Stealer, their diagnostic gear will tell you for sure if the ECU is kaput.
    ^^ This! ^^

    But DO NOT SAY them dealer chaps a word about other's diagnose (ECU, etc.).


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