p 0420 HELP!!!!!
Hi i have a 2005 dodge ram hemi with 167000km on it. And this engine light came on with this code p-0420. Its says its a o2 sensor or the cats. Anyone know which one it would be and which one would be cheaper?
Hey i have that same code to be on for a while p-0420. Can anyone tell me which o2 sensor i would have to change and how much is a new one? Or is something else wrong?
p 0420
Hey i have a 2005 dodge hemi and the engine light came on with the code 0420
. The guy i bought it off said its because i have to run octane 89 in it
Is that true or can anyone help me?
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