1997 Holden Commodore backfiring

1997 HOLDEN COMMODORE

205,000 MILES • 6 CYL • 2WD • AUTOMATIC

STIFFA

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My VS wagon continues to backfire under load when the car is at operating temp. When its cold it does not backfire.
I have changed the plugs and leads. I have also had the coils and DFI module changed and the car serviced.

Any ideas on why it continues to backfire under load

cheers

Feb 24, 2010 at 11:46 PM

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MHPAUTOS

CAR REPAIR CONTRIBUTOR
31,937 POSTS

Hi there,

Is this an exhaust or induction back fire, i would check the comps hot, and get a exhaust analyzer hook up, if it is running to lean, this will cause a back fire start here.

mark (mhpautos)

Feb 25, 2010 at 4:12 PM