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how do you clear a code so it will pass emissions
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asked
Jan 20, 2017
by
Kholly
I had a p0421 code but took care of it im just afraid the code will still be in the PCM when it goes through emissions
Vehicle:
2004 Chrysler Sebring W/ Mitzubishi 2.4 ltr sohc 4 cyl
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engine
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Jan 20, 2017
by
Reynaldo
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You can check to see if the code is pending, a Pending code means that code has not reach maturity, Plus if the monitor are set , and the catalytist has pass, there should be no code setting for P421
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