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- 2002 Dodge Ram 1500 5.9L had a P0420 code. Replaced catalytic converter. Now O2 code.
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Potential Tuner
2002 Dodge Ram 1500 5.9L had a P0420 code. Replaced catalytic converter. Now O2 code.
Replaced catalytic converter. The P0420 code is gong but now Im getting an Oxygen sensor heated catalyst code. Do I need to replace that now? I never saw this code before, only the P0420 code. Do I just need to drive it more ?
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Tuner in Training
the heater in the sensor should read around 10 ohms +/- Probably damaged during the install.