OBD-II code · Powertrain (generic, extended)
P2034 Exhaust Gas Temperature Sensor Circuit (Bank 2 Sensor 2)
A general electrical fault is reported on the exhaust gas temperature (EGT) sensor at bank 2 sensor 2 — open, short, or out of plausibility. EGT sensors monitor catalyst, DPF, and turbocharger inlet/outlet temperatures.
Is it safe to drive with P2034?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyEGT sensor element failed
- PossibleOpen wire in EGT harness
- Less likelyConnector corroded by exhaust heat
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Gas Temperature Sensor, Egt Harness
Related codes
- P2031Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
- P2032Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
- P2033Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)
- P2035Exhaust Gas Temperature Sensor Circuit Low (Bank 2 Sensor 2)
- P2036Exhaust Gas Temperature Sensor Circuit High (Bank 2 Sensor 2)
- P2037Reductant Injection Air Pressure Sensor A Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.