Commodore rough start

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Our 1998 Holden Commodore is lucky to get 450 km out of a full tank of fuel even after I did the leads, plugs and filters. I’ve just done an oil change and fuel filter, I’ve replaced the middle and rear exhaust, and I’ve fitted new tyres. What am I missing? It is rough at times when starting?

Answered by CarsGuide

15 August 2014

Graham Smith

They are renowned for having problems with the coils, so check those and replace them if needed. I would also clean the throttle body and put some injector cleaner in the fuel.

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