Check engine light on - code P0138
#1
Check engine light on - code P0138
Which oxygen sensor do I need to replace? I looked under the car, and there are two sensors. One is towards the front of the car, at the beginning of the cat and the other one is on top of the cat, about midway.
Also, how can I clear the check engine light after replacing the sensor.
Thanks in advance
Also, how can I clear the check engine light after replacing the sensor.
Thanks in advance
#2
Someone will correct me if I am wrong but I don't think there is a code 0138. You may have several codes and did not separate the long pauses from the short pauses. To clear the check engine light you turn the screw on the ECU clockwise til it stops wait 2 seconds and turn it back to the left til it stops and wait 2 seconds and repeat. Let me know if you need more info as to where the ECU is.
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