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2001 Polo cold start issues

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  • #1

    2001 Polo cold start issues

    On cold start there is a strong smell of fuel, the idle is choppy and sometimes the idle will hunt before the car stalls. It will restart without trouble.

    When the car has warmed up there is no petrol smell, and the idle is normal, no issues at all.

    Does this car have a cold start injector? It is an AHW engine.
    Tags: None
  • #2
    No cold start injector. Ahw is twin cam. 16 v which has 4 injectors. You may have a bad coolant temp sensor. It normally gives bad hot start but some can read big negative figures and it drowns itself . The hunt may be it clearing after that. Also might have a problem with throttle body , might not be setting for cold start and fast idle which might be choking it.
    Cheers
    Jmac
    Alba European
    Service, Diagnostics and repairs. Mobile Diag available on request
    Audi/VW/Porsche Factory trained tech 25+ yrs exp
    For people who value experience call 0423965341

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    • #3
      Thanks Jmac. I've ordered a new temp sensor to see how that goes. With the problem seemingly a cold start issue only, it should be right to drive while I wait for the sensor.

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      • #4
        Like i say mate its a major culprit when hot but have def seen it when cold . Well worth a try and then to the others above mentioned
        See how you go, fee free to pm too mate
        Jmac
        Alba European
        Service, Diagnostics and repairs. Mobile Diag available on request
        Audi/VW/Porsche Factory trained tech 25+ yrs exp
        For people who value experience call 0423965341

        Comment

        • #5
          Originally posted by Jmac View Post
          Like i say mate its a major culprit when hot but have def seen it when cold . Well worth a try and then to the others above mentioned
          See how you go, fee free to pm too mate
          Jmac
          Cheers, Jmac.

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