Fault Code P0138
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0138
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
High voltage from downstream oxygen sensor — inefficient catalytic converter.
Part Details
Part Name
Downstream oxygen sensor
Reference P/N (OEM)
89465-33220
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪200 - ₪500
Engine Location
Exhaust pipe — after converter
Symptoms
- Sulfur smell
- Exhaust emission test failure
Possible Causes
- 1Faulty oxygen sensor
- 2Faulty catalytic converter
- 3Exhaust leak
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