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Thread: Z20NET help appreciated!

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    Regular Member mikey c's Avatar
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    Default Z20NET help appreciated!

    Hi everyone,
    I have a 54 plate 2.0t with Z20NET engine, done 75k miles.
    I bought it back from my mate with an ECU issue and was cutting out totally every few minutes and wouldnt restart for 5 mins or so.
    ECU has been replaced and now runs fine except the engine management light comes on after a short trip, loss of power and is cured briefly by turning engine off / on.
    Tech 2 is bringing up P0325 which is knock sensor circuit.

    As said ECU is replaced.
    Knock sensor has been changed.
    has had a full service.
    But it still continues.
    Anyone got any ideas what else we can check?

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    There are two boost control valves that often fail, you could try changing those, as they only cost about a tenner each and can be DIY fitted. One is to the left of the turbo, one is to the left of the throttle body. I think they're both mentioned in Jezzy's Z20NET spec sheet thread.

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