Hi , i have a 2003 vectra c and for the past couple of days it sounded like my exhaust is blowing and there was a lack of power going uphill.
Also on cold starts for the last few days it would start and run at about 300-400 revs for about a minute before it ran normally but no fault codes.
Today i started it up and it started revving over 3000 rpm and wouldn't come back down.
I plugged my code reader in and got 1 fault code P0108 (Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
Does anyone have any idea what it could be.
Thanks
Joe