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Thread: vr v8 starting and backfiring

  1. #1
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    vr v8 ute

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    Default vr v8 timing issues need help bad

    hi all i have a vr v8 ute i just put a second hand vs v8 engine in it i bought the car off a mate who had a fair bit of trouble with it i put new engine in and had mate reprogram memcal for me to suit crow cam i can get it to run by setting the timing with timing light not in diagnostic mode but when starting its very tight . when i set timing in the diagnostic mode at 10 degrees its starts then pops and stalls i have checked earths, plugs,leads, has new fuel pump its not showing any error codes either the only other prob is charge light is on i cant figure out what the hell the problem is its doing my head in big time it will run in diagnostic mode when timing set at 10 degrees but as soon as pull 5&6 bridge pin out it pops backfires and stalls does any one have any theories or have had this prob before pls help going crazy :x
    Last edited by cozzy77; 24-05-2011 at 12:04 AM.

  2. #2
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    Vr S2 exec 5.0 man Wagon

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    Default

    sounds odd, and cant even really think off the top of my head what this could be without going major like the CAM maybe not dialled in correctly, and also the base timng may not be 10 degrees with that cam.

    Charge light is usually meaning the alternator is not charging. Meter that out and have a look at that, could just be a fuse or somthing there too.
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  3. #3
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    vr v8 355 manual ute

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    check tdc of no 1 check dissy if 180 out


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