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Old 10-17-2012, 11:51 PM
BigManMopar BigManMopar is offline
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Join Date: Jul 2012
Location: Jefferson city Missouri
Age: 21
Posts: 1
Gender: Male
Vehicle: 1998 dodge ram
Trim Level: SLT LARAMIE
Color: Driftwood silver
Engine: 1994-2001 318ci (5.2L) Magnum V8 220hp
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Default Exhaust issues need help

IV got a 1998 dodge ram 1500 4x4 with a 318...just recently I pulled the motor apart and did head gaskets and intake gaskets...it runs great and then the other day I got a P0420 code saying low catalyst efficiency bank one and I'm not sure if the O2 sensor is shot or if my catalytic converter messed up when the truck is running I can hear what sounds like something clapping around inside the catalytic converter. Anybody know anything that would help me diagnose the problems...is there a way to re-calibrate the O2 sensor?
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