OBD-II code · Powertrain (generic, extended)
P242B Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 1 Sensor 3
Same as P242A with the signal in plausible range yet not matching the engine model.
Is it safe to drive with P242B?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor element drifted
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–1.8 h
- Emissions test
- Likely to fail
- Parts involved
- Egt Sensor B1s3
Related codes
- P2467Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 2 Sensor 3
- P2474Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 2 Sensor 4
- P2483Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 1 Sensor 5
- P2488Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 2 Sensor 5
- P2428Exhaust Gas Temperature Too High Bank 1
- P2429Exhaust Gas Temperature Too High Bank 2
- P242AExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3
- P242CExhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3
- P242DExhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3
- P242EExhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 1 Sensor 3
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.