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00 Yaris

  • 07-08-2010 1:14pm
    #1
    Yellowledbetter
    Registered Users, Registered Users 2 Posts: 843 ✭✭✭


    The EM Light is constantly on in my g/f little motor.She has had a diagnostics done on and it was put down to a faulty sensor on the exhaust which was replaced and the light was off for a few days but is now back on continously.
    Any thoughts/advice before its off to the garage again!?
    Thanks in advance


Comments

  • #2
    Muckie
    Registered Users, Registered Users 2 Posts: 1,763 ✭✭✭Muckie


    Strange that the light should come back on if the faulty sensor
    was replaced. New part then clear the fault/light from the cars ECU.
    How have you found the car on petrol is it drinking any more than normal.
    Is it running any smoother.


  • #3
    crosshair1
    Registered Users, Registered Users 2 Posts: 554 ✭✭✭crosshair1


    What was the fault code,
    These commonly throw up a p0170 or 171 cant recall due to low voltage from the MAF.
    Some workshops wrongly replace the o2 sensor and the fault returns.
    Hth


  • #4
    VolvoMan
    Closed Accounts Posts: 3,309 ✭✭✭VolvoMan


    Very common fault with the Mk1 Yaris. My one had the same problem and I got it reset on the diagnostics computer when the car was in having another job done. To make the light temporarily go away you can disconnect and reconnect the battery.


  • #5
    [Deleted User]
    Posts: 0 ✭✭✭ [Deleted User]


    crosshair1 wrote: »
    What was the fault code,
    These commonly throw up a p0170 or 171 cant recall due to low voltage from the MAF.
    Some workshops wrongly replace the o2 sensor and the fault returns.
    Hth
    +1

    You could have a P0171 fault code (lean fuel system code) which may be caused by unmetered air entering the engine bypassing the MAF.


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