Omega Owners Forum
Chat Area => General Car Chat => Topic started by: JamesV6CDX on 08 November 2011, 11:21:21
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I think my fuel trim problem might now be sorted.
For anyone who doesn't remember, I was getting a fuel trim code, and sometimes an O2 sensor circuit code, for bank 2. Having given it some thought, I'm not entirely convinced a hole in the 2-4-6 cat was a co-incidence!
Anyway, having fitted a new cat (and lambdas) to bank 2, the code is no longer returning, and fuel trims seem stable on both fuels.
Only time will tell, but hopefully a result there :)
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A hole in the cat will resul in air being pulled into the system after an exhaust pulse has passed so would affect O2 readings
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A hole in the cat will resul in air being pulled into the system after an exhaust pulse has passed so would affect O2 readings
Thing is Mark - the fuel trim issue was there long before the hole in the cat..... so I'm wondering if that was the actually cause of the hole - burning too rich / hot, hence cat damage?
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Cant see it to be honest, it would have to get STUPIDLY hot to melt a hole.
Its possible it was badly corroded and porus I guess.
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Cant see it to be honest, it would have to get STUPIDLY hot to melt a hole.
Its possible it was badly corroded and porus I guess.
That reassures me :y