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Seat ibiza rev dropping

  • 31-01-2015 2:14pm
    #1
    bonelessbread
    Registered Users Posts: 85 ✭✭


    I have an 08 seat Ibiza every now and again when sitting idle at traffic light and such after driving for a bit the rev Wil start to drop they will go to about 600 then back up to 800 then back down and keep doing this anyone no what This is caused by?


Comments

  • #2
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 83,424 ✭✭✭✭Atlantic Dawn
    M


    Probably something high drain running like rear window heater or air con.


  • #3
    Interslice
    Registered Users, Registered Users 2 Posts: 3,506 ✭✭✭Interslice


    bonelessbread wrote: »
    I have an 08 seat Ibiza every now and again when sitting idle at traffic light and such after driving for a bit the rev Wil start to drop they will go to about 600 then back up to 800 then back down and keep doing this anyone no what This is caused by?

    Could be a faulty sensor or a fault on the throttle body if its a petrol


  • #4
    Interslice
    Registered Users, Registered Users 2 Posts: 3,506 ✭✭✭Interslice


    bonelessbread wrote: »
    I have an 08 seat Ibiza every now and again when sitting idle at traffic light and such after driving for a bit the rev Wil start to drop they will go to about 600 then back up to 800 then back down and keep doing this anyone no what This is caused by?

    Could be a faulty sensor or a fault on the throttle body if its a petrol


  • #5
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,180 ✭✭✭✭jimgoose


    As above, could also be a vacuum leak in the intake somwhere. OBD scan followed by Ye Olde Carb-cleaner test.


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