Mechanics

HOLDEN COMMODORE SENSOR PROBLEM

1991 Holden Commodore • 200,000 miles

My 1991 Holden Commodore vn v6 is playing up. Engine erratically breaking down/running rough/ clouds of unburnt black exhaust when it does. Not all the time. Suspect ignition problem. Coil bank. Sensor. Wiring. Has had new computer a few yrs ago.
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P mckenzie
April 10, 2012.




Running too rich, check. Vacuum line at feul pressure regulator if any gas is present, replace it, also O 2 sensors are beyond replacement age!


Merlin2021
Apr 10, 2012.
Often faulty coil packs and leads on these will cause this, but also check what merlin has suggested as well.


Mhpautos
Apr 17, 2012.
Thanks Mark.
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Merlin2021
Apr 18, 2012.

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