1999 Jeep CJ7 Repair Question
1999 Jeep CJ7 COMPUTER CODES
HOW CAN I REPAIR THESE CODES
P0118 is coolant temperature circuit high input, to fix this check the wires going to the coolant sensor and to the wiring harness.
P0138 - Left Bank Downstream or Downstream and Pre-Catalyst o2 Shorted to Voltage low. that is caused bye a bad catalytic converter or a bad pre and after o2 sensor may also be caused due to the P0118 code.
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