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cannot get evap system monitor & oxy sens htr monitors to reset I have a po455 & po442 code:mad:
 

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2009 Dodge Challenger R/T
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Need info on your ride. What year, engine is it? Did anything happen to make it start throwing codes?

Both of those code are for the evap system. Some of the most common causes are a leaking gas cap or a cracked hose on the evap system.
What makes you think there is a problem with the O2 sensors?
 
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