MB 2009 Fuel too rich
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Joined: Jun 2019
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2009 MB C300
MB 2009 Fuel too rich
Ok first, hello all! I have a question. I had my check engine light come on and it took a while to get it checked but it came back fuel too rich with two codes bank 1&2. It had gone off and come back a few times prior to my getting it read but now I have had a mechanic look at it, He sealed the air intake tubes as one he fallen off and reset and the cel was off then came back. I had another mechanic check and he thinks the fuel injectors need to be reprogrammed since there is nothing fault in the reading. All systems read good but I still get the fault codes. I put a cleaner in the gas, use shell nitro and changed filters. I refilled last night and this morning check engine light was off and came back on when returning home from work. It’s about a 50 mile drive each way. Any ideas, suggestions? There are NO performance issues, no loss of mpg, that’s actually improved. No stalling, no misfires, no hesitations, no egg smell, no gas odors nothing. Seems to run just fine other than those codes..
