Fault Code P0140
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0140
O2 Sensor Circuit No Activity (Bank 1 Sensor 2)
No activity from the rear oxygen sensor — signal is frozen.
Part Details
Part Name
Downstream oxygen sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪200 - ₪600
Engine Location
Exhaust pipe — after the converter
Symptoms
- Check Engine light
Possible Causes
- 1Faulty sensor
- 2Open wiring
- 3Disconnected connector
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