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  • Sluggish when cold

    The behaviour of the old girl has been a bit naughty when cold, with lumpy running under power and the need to give the throttle a good prod to get going. It's all gravy when warm. Starting behaviour seems a bit off too, where once it fired in to life it's more of a cough now but still catches first time.

    Culpritsulprits are lambda warm-up and MAF. Will check the codes and do some digging but in the meantime, any ideas?
    Cheers'en, AndyC

    K24 Racing - K24R Products

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  • #2
    Sticky icv?

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    • #3
      I'll give it a clean. Idles perfectly.
      Cheers'en, AndyC

      K24 Racing - K24R Products

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      • #4
        IAT sensor ?

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        • #5
          No codes so cleaned the MAF connector again and checked it all over. Seems better.

          Need to fit my new pins! And buy a new MAF I think
          Cheers'en, AndyC

          K24 Racing - K24R Products

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          • #6
            Pesky maf connector again!

            S2 Coupe 3B Project


            Ur quattro restoration

            S2 Avant

            Boost is the new rock and roll!
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            • #7
              G28 on the back of the head....always caused cold start issues on mine when on the way out
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              1992 3b S2 Coupe

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              • #8
                Bad lambda heating. Had similar troubles when cold. When it warmed up, went as usual. Replaced the probe and the issue was gone.

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                • #9
                  Yes, lambda heating is an option. I wonder about coil pack too but tbh I think that would be worse when running. Will grab a new lambda (again) and try that. Gen Bosch lambda has done maybe 5k...
                  Cheers'en, AndyC

                  K24 Racing - K24R Products

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