My SWMBO car is having a regular visit from the Mil light.
When I put my diagnostic tool on it is saying that it is too rich on the right bank.
I clear the fault, which can come back any time between a day or two to the next drive.
My question. Is the oxygen sensor likely to be faulty or could there be an other problem causing this too rich scenario, which the oxygen sensor then reads and reports to the ECU?
Car is an 06 Ford LTD with 5.4 litre V8 running on liquid injection gas.
Dave.
I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."
1983 RR gone (wish I kept it)
1996 TDI ES.
2003 TD5 HSE
1987 Isuzu County
Failed oxygen sensors tend to read too lean more often than too rich. I'd be running it on petrol for a few days to see if it still throws the MIL. There could be a dribbling petrol injector that's causing the rich fault.
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