hmmmmmm. This Could be a faulty ecu with those fault codes "BUT" Alarm bells would start ringing as soon as I heard that the other garage had fitted a coil pack.

First thing with that job would be to check What spark plugs are fitted ( Make sure they are the correct resisor plugs and not japanese ), But More likely than that, Has a Non genuine coil pack been fitted. ???

I have had several Vectra's in with non genuine coil packs fitted, On Questioning the customer, The Coil packs were fitted to cure a misfire and as soon as the new coil packs were fitted, The Cars started cutting out and logging Spurious codes such as "REPLACE ECU" and "IMMOBILISER FAULT" One Vectra had even had a used ecu kit fitted by the previous garage due to the Fault codes and it didn't cure the problem and the car cut out exactly the same and loggeed "REPLACE ECU". A New Delphi coil pack cured the problem.

I Would Very rarely send an ecu for testing as all you are doing is wasting time and your money. ( Or your customers money ) and the Test results are rarely trustworthy. Theres Nothing worse than having the ecu condemned and buying a replacement only to find out that the car still has the same problem with the replacement ecu or being told its OK only to waste hours re-testing to find out that the ecu has an intermittent fault that was not picked up by the ecu Testers.

I Always Test On the Vehicle and make a Decision, If your Unsure , Its as cheap to buy a used Kit rather than wasting money on testing. Plus if You fix it with the kit the Jobs done and If the same fault is present then its unlikely to be an ecu fault and at least you have a spare kit for the next Astra that comes in.


H.T.H Tony.