04-24-2023, 08:19 AM | #1 |
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F25 2011 Engine Light On
Hi All
A few months ago I got an engine light on and scanned anf got the following errors: - 118602 Oxygen sensor before catalytic converter,system checksignal fixed at rich - 128301 Oxygen sensor before catalytic converter,fine mixture controlexhaust gas after catalytic converter too lean So far I have changed my MAF Sensor, Engine Air Filter Na both upstream Oxygen Sensors and still get the same error everytime temperature goes above ~+2°C. I have not noticed an increase in fuel consumption however I do smell fuel from my exhaust. Anybody has any idea what could be the issue? |
04-24-2023, 10:40 AM | #2 | |
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I would definitely start by measuring the fuel trims. Also which F25 do you have? 28i? 35i? It would also be good to include mileage, and as much info as possible really. |
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08-17-2023, 10:00 AM | #3 |
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F25
It's a 28i. Mileage is ~240,000 KM.
Understanding that the engine is running lean but I can smell gas/oil coming from my exhaust. not very intense but I got a strong sense of smell and can pick it up. Attached are photos of the codes I'm getting. FYI some of the work has already been completed with no result: -New MAF sensor -New Air Filter - The O2 sensors were checked and no oil on them -Smoke tested and no leaks were found. Photos are provided in the link below. https://ibb.co/2WL1FhH https://ibb.co/FmTPnXT https://ibb.co/M9SjZYT https://ibb.co/XtJCD1S https://ibb.co/dkr0ndX https://ibb.co/LpBB0cS https://ibb.co/gd3scpv Would appreciate it if anyone has any similar issues. I took it to multiple mechanics and they can't seem to find the issue. |
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