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NEED HELP ON CODES 21 AND 15

Buellxb Forum

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M

MRH3542

New member
Joined
Jun 27, 2011
Messages
2
I'm helping a friend with a 07 Firebolt 1200 that has the check engine light on . We pulled the codes using the jump wire and we believe they are 15- IAT and 21 Muffler control module. Can any one tell me if this is a common problem and could something else be causing both of these codes???

Thanks,
Mike
 
Sounds like they are just unplugged. Did you take the air box off to see if they are both plugged in?
 

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