P0138
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CF Veteran
Joined: Jul 2009
Posts: 1,254
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From: London Ontario Canada
Year: 2000
Model: Cherokee
Engine: 4.0
P0138
Got this code on my 99.
P0138 O2 sensor circuit high volts (bank 1 sensor 2)
What testing should I do before just changing out the sensor?
P0138 O2 sensor circuit high volts (bank 1 sensor 2)
What testing should I do before just changing out the sensor?
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