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code po172b

2

2003 gtp

New member
hey guys i got this code after i replaced my fuel injector.miss fire on injector cleared c.e. light,2 days later c.e. came on. code po172b-fuel trim system rich.any ideal what caused this?mass air sensor?cheap gas?thanks 4 any help
 


Clear the code, then unhook the battery for 30 min. That'll reset the fuel trims. Likely the injector being bad caused your trims to be off and they need to relearn.
 
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