Mechanics

JEEP GRAND CHEROKEE HEATER PROBLEM

2004 Jeep Grand Cherokee • 101,000 miles

Code reader says "Oxygen Sensor bank 1 heater performance"
What does this mean
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Guest
December 28, 2012.




The heater circuit of O2 is either open or shorted heater neded to heat up O2 quicker

Docfixit
Dec 28, 2012.


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