Code P0420 Jeep Wrangler

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P0420 tj wrangler Error code p0420 on 2000 tj Sensor o2 oxygen p0420 bank p0140 circuit clean catalyst efficiency code below system threshold catalytic converter sensors low ho2s heater

Error Code P0420 on 2000 TJ | Page 2 | Jeep Wrangler TJ Forum

Error Code P0420 on 2000 TJ | Page 2 | Jeep Wrangler TJ Forum

P0420 catalyst system efficiency below threshold (bank 1)

P0420 Catalyst System Efficiency Below Threshold (Bank 1) | The Motor Guy

P0420 Catalyst System Efficiency Below Threshold (Bank 1) | The Motor Guy

Error Code P0420 on 2000 TJ | Page 2 | Jeep Wrangler TJ Forum

Error Code P0420 on 2000 TJ | Page 2 | Jeep Wrangler TJ Forum

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