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Thread: 2001 zd30 no power

  1. #21
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    Quote Originally Posted by threedogs View Post
    Im with @mudski your IC will be leaking I think they leak straight off the showroom floor CR included.
    If its oily its leaking, you could test in a kiddies pool and a bike pump, block the erg as well . If you dont have a boost or EGT gauges
    I strongly suggest you fit a set . you need to know whats happening under the bonnet. Have you got fresh fuel filters fitted
    Thanks TD and Mudski The Gu is travelling on the trailer behind the bus again so next stop in civilization I will get serious about it again.
    Cheers

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  3. #22
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    OK guys I have had a bit more of a play but am no better off. I bypassed the IC altogether in order to discount an internal blockage - same amount of boost and spool rate - oddly it went into limp mode even though the MAP was out of the circuit (still in the bypassed IC) was this because the computer saw no boost?
    Should my next step be new injectors?
    Thanks in advance

  4. #23
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    Have you replace the MAF with a new genuine one?

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    Quote Originally Posted by mudski View Post
    Have you replace the MAF with a new genuine one?
    I have 3 good MAFs @mudski - 2 genuine - all good, I have chucked the dud one I had for checking.
    Sorry for slow response, travelling down the west coast South of Broome at the mo, patchy signal.
    Last edited by MettersGU; 19th September 2018 at 09:11 PM.

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    mudski (20th September 2018)

  7. #25
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    One thingThat would be worth looking into is the MAF voltage mod. Im not sure how to do it but from what I understand its cheap, the cost of a resistor, and its easy to do. There is a tutorial on the web somewhere about it. I had limp mode issues with my old ZD. I went the expensive route before I knew of the mod and bought a HPD high flow MAF housing. After fitting it I never had limp mode again and could boost over 30psi and still no limp.

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    Hi Guys,

    I finally managed to get back on the forum and after replacing the injectors all of my troubles have gone away. The engine is as powered up as it has ever been. The old injectors were spraying a good pattern but were down on pressure av.174psi and should have been around 214 so there you have it I did hear a couple of times in my search for an answer that if the head was removed the injectors needed replacing. Mine was off twice and still had original injectors that had done 240k Ks so had a good run.

    Now I seem to have an occasional fuel drain back problem so am thinking maybe a seal on the fuel returns from the injectors could be leaking. Would that explain it?

    Cheers nm
    Last edited by MettersGU; 12th December 2018 at 08:25 PM.

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    rusty_nail (13th December 2018)

  10. #27
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    Thanks for all that information I am about to rebuild a zd30 I brought car NT running no compression in no4 have stripped engine and found nice hole into top ring looking for a supplier to get complete rebuild kit was wondering can you get stronger pistons from someone thanks again Mal

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