Diagnostic trouble code P0167 on Seat vehicles — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does P0167 mean?
P0167 indicates: O2 Sensor Heater Circuit (Bank 2 Sensor 3).
This relates to the Fuel & air metering system.
Common causes of P0167
oxygen sensor heater failure preventing rapid warm-up of sensor ceramic to operating temperature
ECM control circuit fault for O2 sensor heater
What to check (live data)
oxygen sensor ceramic operating temperature (target: approximately 900°C / 1652°F)
Parts often involved in P0167
oxygen sensor heater (Z19, Z28, Z29, Z30)
lambda probe heater
Don't replace parts until the root cause is confirmed — many of these codes are caused by wiring, a connector or an upstream fault, not the part itself.
Get the confirmed root cause for P0167 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
P0167 is a diagnostic trouble code: O2 Sensor Heater Circuit (Bank 2 Sensor 3).
What are the common causes of P0167 on a Seat?
Common causes include: oxygen sensor heater failure preventing rapid warm-up of sensor ceramic to operating temperature, ECM control circuit fault for O2 sensor heater. The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving a Seat with P0167?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix P0167 on a Seat?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for P0167 on your specific Seat.