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Thread: Idling issues

  1. #1
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    Idling issues

    Hi guys, since yesterday my car has started idling weird most of the time when i come to a stop the revs climb to 1400 even around 2k sometimes then go back to 800, and this keeps repeating. It does not happen when i turn the AC on, it idles normally then.

    I also got a Engine light today which i checked and was p0441- 002 incorrect flow also p0507 idle higher than expected error. Does anyone know what could be the problem? Im booked in to see my mechanic next Friday but if its easy i might give it a go myself.

    Thanks in advance

  2. #2
    Senior Member ozzy.adam.9's Avatar
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    PCV or some kind of air leak.


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  3. #3
    Super Moderator VADERR's Avatar
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    I've had the same issue Naz. I changed my PCV first and that seemed to have sorted the problem. If that doesn't fix the idle you could have a vacuum leak somewhere.
    Driver Motorsport Tuned | Melbourne Car Meets | Insta: @RefrigerVADERR

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    That is what i am thinking, do you guys know any way i could find out where it is from? I rear that if it is PCV it would be hard to open oil cap and dipstick with motor running, mine wasnt and when i did open it it affected the idle which i think is what is meant to happen. I have a volant intake and I read another thread and some guy had the same intake and when he swapped it out it fixed it, but not sure because i installed it a few months back and it only started to happen yesterday.

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    Super Moderator VADERR's Avatar
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    Quote Originally Posted by nazzri View Post
    That is what i am thinking, do you guys know any way i could find out where it is from? I rear that if it is PCV it would be hard to open oil cap and dipstick with motor running, mine wasnt and when i did open it it affected the idle which i think is what is meant to happen. I have a volant intake and I read another thread and some guy had the same intake and when he swapped it out it fixed it, but not sure because i installed it a few months back and it only started to happen yesterday.
    Shouldn't be opening the cap or dipstick while the oil is running.. You'll get a leak and the car will stall. You really need to get the car scanned and see if it gives any error codes.
    Driver Motorsport Tuned | Melbourne Car Meets | Insta: @RefrigerVADERR

  6. #6
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    I read online that thats how you can check for PCV. I did get the car scanned haha i put the codes in the OP.

  7. #7
    Super Moderator VADERR's Avatar
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    Quote Originally Posted by nazzri View Post
    I read online that thats how you can check for PCV. I did get the car scanned haha i put the codes in the OP.
    Ahh must've skimmed over that. Well the idle error could be.

    Leaking air intake after the throttle body
    EGR valve leaking vacuum
    A faulty positive crankcase ventilation (PCV) valve
    Damaged/failed/dirty throttle body
    Failed EVAP system
    Failed IAC (idle air controller) or faulty IAC circuit

    I'd change the PCV first.
    Driver Motorsport Tuned | Melbourne Car Meets | Insta: @RefrigerVADERR

  8. #8
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    Thanks bro, ill give that a go, also, is cleaning the throttle body simple?

  9. #9
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    I cleaned the maf sensor and also reinstalled my intake, it felt like it was fixed for about 20 min but then it came back

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  10. #10
    Senior Member ozzy.adam.9's Avatar
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    I think I've got an old PCV valve going cheap. Came off my GTI. I just put a new one on because I could.


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