Powertrain
generic / SAE
P246A
Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 2 Sensor 3
Same as P242E on bank 2 sensor 3. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 6A
Possible causes
- Intermittent contact at connector high
- Connector with intermittent contact under vibration low
- Harness routed against vibrating component low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–400 €
- Estimated time: 0.6–1.8 h
- Component: egt sensor b2s3
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012