Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Mass Air Reads Lean, Check Engine Light is On
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Old 11-05-2008, 10:09 AM   #2
the_07ninja
Gal. 2:20
 
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I kinda did the same thing before I got my CAI. My check engine light came on once and my friend at work reset it. The only thing I could suggest would be to un hook your battrie for about 15 min. That will reset your ECU to stock...but I can't promise it will not come back. The problem isn't your MAF sensor the problem is your AFR (air to fule) is off now and your MAF sensor is throwing a flag up. The sensor is doing what it's supose to...no need to reset it. I would try maybe a smaller filter...did you check all the band clamps to see if your leaking air...or in this case sucking it in.....let me know if this helps you I would also suggest posting in the Duratec section I hink you'd get a bit more feed back from them.
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