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Home >> Jeep >> 2007 >> Compass Limited, FWD, Automatic CVT >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0271 To P0441 >> P0420-Catalyst 1/1 Efficiency >> Monitor Conditions
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Monitor Conditions

  1. When Monitored: 

    With the ECT above 70 C (158 F), engine RPM between 1400 and 2300, vehicle speed between 64 and 96 kph (40 and 60 mph), and engine run time greater than 3 minutes.

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