What is CEL?
03-02-2006, 11:22 PM
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Also can be called a SES light...(service engine soon) or in techie terms MIL light (malfunction indicator lamp)....SOrry thats my two cents for the day...
03-02-2006, 11:25 PM
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The MAF sensor (mass air flow) is picking up more air flow then stock...When the computer sees something that isnt in "spec" it freaks out and turns on the light...With the GM stage reflash however it can be fixed....That the best way i could explain it smart ppl feel free to jump in anytime.......
03-02-2006, 11:45 PM
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Originally Posted by zinner
Actually the MAF is reading less air than it should be and it'a causing a lean code for most of us. P0171
03-02-2006, 11:49 PM
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Originally Posted by Toronto SS
Wouldn't a lean code imply more air?
I thought the same. I know its not the same but when I adjust the air screw on the carb for my dirtbike and open it up and then let it run and check the sprak plug. The plug is grey/white color and if i close or turn in the air screw it richens the mix and the spark plug turns to brown
03-03-2006, 07:39 PM
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the MAF reads less air coming in , then what is actually gettin into the engine so the pcm cuts the fuel back too to keep the ratio the same, except the engine still needs that fuel because in fact there is still the same amount of air coming in. this results in the exhaust stream coming out as lean and the O2 sensors picking it up as lean, causing P0171
isnt a cel a terrorist group?
03-04-2006, 12:08 AM
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CEL means a lot of different thing. http://acronyms.thefreedictionary.com/CEL
But for cars it means Check Engine Light
But for cars it means Check Engine Light
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