Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 4

Where it lives

For P2474, the part to look at first is the sensor named here. The description of P2474 puts it on bank 2.

Check these first

• A sensor 4 element that drifts on bank 2
• A sensor 4 circuit with added resistance
• A bank 2 exhaust leak that skews the reading
• Low compression on bank 2 raising exhaust temperature

What to do next

1. Read exhaust gas temperature sensor bank 2 sensor 4 on a scan tool
2. Compare sensor 4 to the other bank 2 EGT readings
3. Test the sensor 4 circuit for added resistance
4. Check bank 2 for exhaust leaks and low compression
5. Replace the exhaust gas temperature sensor if the readings drift apart
6. Clear the code and retest

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