Mini Help needed PLEASE!
Mini Help needed PLEASE!
Greetings,
I have a 2003 MCS with less than 100K. My fuel mileage is down and it is running rough. I have had the spark plugs replaced and used a fuel injector cleaner, but it that hasn't helped. I have the instructions to reset the ECM. Has anyone done this and if so what are the risk?
Thanks!
I have a 2003 MCS with less than 100K. My fuel mileage is down and it is running rough. I have had the spark plugs replaced and used a fuel injector cleaner, but it that hasn't helped. I have the instructions to reset the ECM. Has anyone done this and if so what are the risk?

Thanks!
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