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Home >> Jeep >> 2012 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L & 2.4L - DTCS P000A To P0303 >> Diagnosis And Testing >> P0139-O2 Sensor 1/2 Slow Response >> When Monitored:
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

When Monitored:

With engine run time greater than five minutes, the coolant temperature greater than 75 C (167 F), vehicle speed greater than 64 kph (40 mph) and the vehicle in decel fuel shut-off (coasting with the accelerator pedal fully released).

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