P2474Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 2 Sensor 4)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2474 flags a plausibility problem: the electrical signal of bank 2 probe 4 is valid, yet the temperature it reports does not fit what the engine controller expects. Typical tests compare the probe with its neighbours after a long soak, when all should read about ambient, or with a modelled value during driving. Ford handles the bank 1 analogue P246F as a sensor-to-sensor check on its single-bank diesels; for the second bank no maker publishes P2474. CARB requires rationality monitoring for exhaust temperature inputs that feed emission strategies. A skewed probe can start or block regeneration at the wrong time, so the driver may notice higher fuel use or a regeneration that never completes.
- What you may notice
- MIL on after repeated detection
- Probe 4 of bank 2 differs clearly from the other probes after a cold soak
- Regenerations incomplete or more frequent
- Likely causes
- LikelyProbe aged and reading off by a constant amount
- PossibleSoot-coated probe tip reacting slowly
- RareExhaust leak upstream of the probe falsifying the reading
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.