Been at this b---y car for months now - just renewed the complete exhaust as well as a brand new cat. Emissions light still staying on with rough idle and fault code p0340 cam sensor - will not revv above 4,000.
Put a new universal lambda sensor on the post cat and a new cheap cam sensor - maybe bad idea !!
Vectra C 03 1.8 LS WITH THE X1.8XE Engine - anybody had similar problems ?