JupiterJoe
Member

This fault is driving me mad. I had a look 'round and found the corrugated induction hose was spilt (common fault) and replaced. I removed the DISA valve and checked operation. Seems to be fine. My 2004 car has only 36k miles on her and before it went into the garage, to have the underseal touched-up there were no faults. Have they unplugged something and not put it back, or plugged up a vent with underseal? What gives?