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Thread: Zd30 lack of power

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    Zd30 lack of power

    Hey fellas,

    Recently bought a 2000 zd30 gu, and its a bloody slug.

    Maxs out on a flat road at about 110, flat to the floor. Going up hills slows back down to 70-80 on the highway.

    When i first got it home, was having a look and there was no air filter, so purchased one, and cleaned the maf, but its still bloody gutless.

    Sometimes itll boost to about 16-18psi, others it wont go over 5 until you restart the car.

    Just wondering what you fellas would suggest doing, cheers.

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    Hardcore GQtdauto's Avatar
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    Start by trying another maf sensor that's known to be good ,replace fuel filter is where I'd start .

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    Sounds like limp mode ..... disconnect the battery for 30 min to clear any codes and try again.

    I would install a new MAF, as who knows what has been going on with no air filter
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    Missing in Action VK2FMIA's Avatar
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    Sounds like it is in "Limp Mode". Mine was doing the same thing, no guts over 2500 RPM. Mine was caused by a faulty wire to the MAF sensor. The wire was damaged weeks earlier when a fan belt failed damaging the wires under the air intake, might be worth taking a look at them. If wires are OK then it is probably the sensor itself.
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    Quote Originally Posted by jschw99 View Post
    Hey fellas,

    Recently bought a 2000 zd30 gu, and its a bloody slug.

    Maxs out on a flat road at about 110, flat to the floor. Going up hills slows back down to 70-80 on the highway.

    When i first got it home, was having a look and there was no air filter, so purchased one, and cleaned the maf, but its still bloody gutless.

    Sometimes itll boost to about 16-18psi, others it wont go over 5 until you restart the car.

    Just wondering what you fellas would suggest doing, cheers.
    Does the engine have manual boost control fitted (Dawes-Tillix / Needle)?

    Any other mods to engine that you can see apart from running air filter delete.

    The motor sounds like it has been neglected so first do your oil/fuel filters and change your oil out (if not yet done).
    2008 GU WAG ST Manual CRD - To do the job

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    Already done the oil & filter. Just waiting until next week before i can do the fuel filter. Will try disconnecting the battery and see how i go there.

    Also, which wires on the maf am i to check? On the connection that plugs into maf? Sorry, completely unexperienced in zd30s

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    Alright, tried disconnecting the battery for a while and still gutless.

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    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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    Hey boys, took into a mechanic today. Fault code was regarding the maf sensor, and apparently it was just not working at all. Got a new one im putting in in the morning, and they mentioned something about remapping the ecu. How do i go about that?

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    Quote Originally Posted by jschw99 View Post
    Hey boys, took into a mechanic today. Fault code was regarding the maf sensor, and apparently it was just not working at all. Got a new one im putting in in the morning, and they mentioned something about remapping the ecu. How do i go about that?
    Disconnect the battery for 30 minutes.
    That forces the ECU to relearn its parameters for the factory map.

    If you want a different map entirely then that means hooking up a PC or changing chips which means forking out $'s
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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