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VZ CHECK POWERTRAIN (MISFIRING) v6

dodbro3

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Rightio. Another one of these damn posts, done so much research and with no luck,

Getting the check powertrain warning
got error codes checked by mechanic and he said it was all misfiring errors

recently chained oil, oil filter, put injector cleaner through, new battery, spark plugs, checked coils.

misfires every time I start the car. (serviced up to date except fuel filter, no idea how old it is, can't get the damn thing off.)

Where should I go from here?

PLEEEEASSSSEEE HEEELLLLP!!!

V6 3.6L 2004
 

MattK

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Unfortunately Holden should be able to dip into your wallet for that one ...
Or anyone with a diagnostic computer ( ? )

Hmmmm , spark plugs hu ?
Guess the manifold came of for that ( Here is a possible reason )
Injector cleaner ( Another possible reason )
Checked coils ( ? ) exactly how did you do that ? Another possible reason ..

Are you sure :

That everything went back as it should , everything is plugged in as it should ..
Funny thing about removing and un plugging stuff ..
Got to make sure it all went back properly ..

My advice is to re trace your work .. Check and check again for that human condition ( we make mistakes )
Here is another , check those vacuum tubes for cracks ( breaks ) as they tend to be a little fragile after a decade ...
Same with the rubber connections
 

dodbro3

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Bought a brand new coil and put it in, still misfires on that cylinder. just repaired vaccume hose, still misfiring.
 
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