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Code 21

Hi Guys ive got no spark on no1 cylinder and im reading codw 21 on my Conzult.Is it worth changing the coilpack or just buy a series 2 PTU?

Anyone have this problem before?

Steve.

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    • Featured Replies

    Code 21 indicates ignition so check ptu, harness,also coilpacks etc

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    Its a quick job to swap coilpacks around, I'd try that first. If you have a multimeter check for voltage on the coilpack connector with ignition on too.

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    • Author
    Its a quick job to swap coilpacks around, I'd try that first. If you have a multimeter check for voltage on the coilpack connector with ignition on too.

    Yeh thanks mate i tried that and i have 12v.

    I also put a plug in and ran it .Completly dead.

    I now have another cilpack and s1 ptu to try.But im pretty sure its the PTU.

    Thanks again lads.

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    • Author

    Sorted it :hyper: :hyper:

    It was a bad connection on my ECU.

    A big thanks to Shaun and Dave Mac for lending me the parts to try.And to John Dixon for pointing me in the right direction.

    Thanks again guys. :bow:

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