P2472: Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic — Bank 1 Sensor 4
What to do
As P2081 — hot-only fault patterns are the location's signature.
What this code means
The fourth sensor's signal on bank 1 is cutting in and out — the heat-baked harness verdict of P2081, at the far end of the pipe where connectors cook longest.
Likely causes
Start here
- Exhaust heat damage to sensor harness · moderate
- Intermittent wiring fault · moderate
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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What makes one worth reading:
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