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Code reader says "Oxygen Sensor bank 1 heater.
2004 JEEP GRAND CHEROKEE
Code reader says "Oxygen Sensor bank 1 heater performance"
What does this mean
Friday, December 28th, 2012 AT 9:31 PM
The heater circuit of O2 is either open or shorted heater neded to heat up O2 quicker
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Friday, December 28th, 2012 AT 9:45 PM
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