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« on: 30 December 2007, 21:04:39 »
My Omega CD 2.2 petrol auto is back home on the driveway and I have the Vauxhall "Technician's" report detailing the diagnostic checks which cost £180 but I decided against paying the £977 for a new ECU.So far the engine is starting and running normally but the emmissions warning light is still 'on' continually.For what it's worth this is the report
"Emmission light on + misfire. Vehicle running + cutting out on drive into workshop. Carried out Tech test, several trouble codes stored, all not present, cleared codes and ran vehicle to see if any specific code would re-occur. No more codes came up. After running engine for a while noticed that the exhaust was glowing near the cat, suspect that the exhaust could be blocked, allowed to cool down then disconnected exhaust from behind cat. Still running poorly so mid and rear exhaust OK. Removed O2 sensor from before cat, still running poorly so cat seems OK. Exhaust must be glowing due to overfueling and burning fuel in cat, require more time to check into fault.
Reconnected all of exhaust, cleared codes and ran engine , trouble code P1555 was present, will require ECU update before investigating any further. Updated ECU, fault code now cleared, still running poorly but not backfiring anymore, checked throttle body, requires cleaning out. Cleaned out throttle body and top breather pipe, still running poorly but with no trouble codes stored. Will have to work through checking procedures to code that was stored previously. Checking procedures asked to check for blockages and for leaks on intake pipes. Breathers and throttle body already cleaned and checked. Next step is to check programming, ECU has already been reprogrammed. Checking procedures recognise faulty ECU, however code is not present at the moment"
The sales invoice stated that the valve timing was also checked but this does not appear in the "technician's" report.
PS thanks again guys for all your replies, I need to contact MarkDTM to arrange for further checks and 2nd opinion.
Regards and Happy New Year, Baldeagle
