Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Duke01 on 14 September 2015, 20:49:27
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To cut a long story short, 3.2 still missfires in traffic although fine on a run. (0301, 0303, 0305, 0300). Rough on both petrol and lpg.
I fitted a Bosch coil to that side twice, still the same.
I mentioned fuel trims and the garage claim they are ok.
I have supplied them a used engine loom to put on, but they keep insisting its one of the head gaskets, and claim its more than the car is worth to repair.
Now when in traffic, i can switch off and back on again and she is fine for a while. This to me does not indicate a head gasket failure, which i gather Omegas are not prone to, although they said about the colour change on the coolant test..
I have only lost the tiniest bit of water in the last 3 months.
Help!
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It's worth doing a compression test?
The fact it is ok when restarted means little, as the ecu will shut down cylinders if a misfire is detected regardless of the cause....
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mine was fluid tested and was ok..two weeks later it blew up big time gone on all 4 cyls.. :'(
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To cut a long story short, 3.2 still missfires in traffic although fine on a run. (0301, 0303, 0305, 0300). Rough on both petrol and lpg.
I fitted a Bosch coil to that side twice, still the same.
I mentioned fuel trims and the garage claim they are ok.
I have supplied them a used engine loom to put on, but they keep insisting its one of the head gaskets, and claim its more than the car is worth to repair.
Now when in traffic, i can switch off and back on again and she is fine for a while. This to me does not indicate a head gasket failure, which i gather Omegas are not prone to, although they said about the colour change on the coolant test..
I have only lost the tiniest bit of water in the last 3 months.
Help!
what spark plugs looks like on bank 135 ?
did you try drive on petrol few days not use lpg at all ?
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I changed the plugs along with the coils. Didnt think to look at the old ones before throwing them.. I have used petrol for two days, it was slightly better but not great.. The thing i forgot to mention was that i had changed the 2,4,6 coil after it threw codes. It ran fine until the next day when 1,3,5 started throwing codes. So i think i have pulled the wiring to much.....2,4,6, still ok.
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I changed the plugs along with the coils. Didnt think to look at the old ones before throwing them.. I have used petrol for two days, it was slightly better but not great.. The thing i forgot to mention was that i had changed the 2,4,6 coil after it threw codes. It ran fine until the next day when 1,3,5 started throwing codes. So i think i have pulled the wiring to much.....2,4,6, still ok.
what spark plugs you have fitted?
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Bosch, 4 electrode
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when was list time timing belt done? any other fault codes? air leak?
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Timing belt probably due. Last done 25,000 ago..
If it jumped a cog, it would run badly across the whole rev range i assume..
It always showed an 0420 for the cat, but since the misfire this code has stopped appearing.