Hope you don't mind me adding 2 pence worth !!
if the throttle cable is good !!
Have the vectra plugged into a diagnostic scanner and read and write down the fault codes ... then delete the codes to reset the PCM (cars computer) the car should rev correctly again now, but you will have to get the faults fixed that the computer is showing or this fault will re-occur ?
hope this helps
Sunday, September 27th, 2009 AT 5:04 AM