My car had its check engine light, check vsc light on. The code being thrown was P0138. Had o2 sensor & cracked exhaust repaired. Lights came back on.... Was my repair done incorrectly?
Did the place that did the job remove the codes and then they came back?
Yes, they cleared the codes for me but after I drove for awhile the check engine check vsc lights came right back.
Since they have worked it take it back and let them take another look. Or have you already done that?
This code is for high voltage at the downstream oxygen sensor. The downstream oxygen sensor is in the exhaust system after the catalytic converter. The most likely cause is a bad downstream oxygen sensor or the wiring going to the downstream oxygen sensor is shorted. HTH. - Jim
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