20 Most Recent 2005 Opel Vectra 2.2 Questions & Answers

could be the light control switch they do do this when they fail. if you pull it out. the lights should go off. its held in place with 2 clips you need to put a flat blade in the sides of the black square part and wiggle the switch out. replace the hole switch...this box controls the lighting. fogs side lights main beam control and dash lights.

Ecu chip will help you a lot , change all fitters and the oil as well

run the fault codes could be a loose wire /dirty connection to a crank/cam position sensor that is loosing circuit during the acceleration

In order to understand what is going on here you need the computer control system to be scanned with a special scan tool, The choices here are a dealer or a very well equipped shop that works on this make of vehicle and understands it systems and has the special tool required scan it..

Sounds like you didn't get the right head . Newer or older. Should be no interfering. Using the old head gaskets isn't very good either.

Try a hardware store or your local Opel dealer.

if possible, get it to an auto parts store. they will pull codes for free