CODE READER SAYS OXYGEN SENSOR BANK 1 HEATER ...

2004 Jeep Grand Cherokee

Tiny

Anonymous

December, 28, 2012 AT 9:31 PM

Code reader says "Oxygen Sensor bank 1 heater performance"
What does this mean

1 Answer

Tiny

Docfixit

December, 28, 2012 AT 9:45 PM

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

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