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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (3.6L - DTCS P0158 To P0462) >> Diagnosis And Testing >> P0420-Catalyst Efficiency (Bank 1) >> When Monitored

When Monitored

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

There are several different catalyst efficiency monitoring windows. Each specific window has several different enable conditions. The best opportunity for the catalyst efficiency monitor to run is the engine warmed up above 60°C (140°F), engine speed between approximately 1000 RPM and 2500 RPM, vehicle speed between 3 mph and 80 mph, under moderate engine load, and no other O2 Sensor circuit faults active.

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