i just bought a vl commodore with dual fuel. its the first gas car ive had and im starting to find a little problem with it. when i start it up and drive i have it in 'petrol' for maybe 2 minutes then switch to 'gas'. drives perfect when its on gas too. only when its in petrol i find that when you are sitting stationary at the lights etc. and want to take off quick or by putting your foot down fast theres a slight flat spot. (only in petrol though) sounds as if its about to conk out or something. what exactly is wrong here, im thinking sensor or maybe the timing. i would really like to know the problem before i fork out and take it down to ultratune or something which i really do not want to do. any help on this would be great fellas, cheers.

the aac valve on the back on plenum may be a lil bit sticky this may be causing the problem i had the same sort of thing ?

Quote: Originally Posted by chinabone the aac valve on the back on plenum may be a lil bit sticky this may be causing the problem i had the same sort of thing ? hey man, not really sure where that is. got any pics of where to look at?