Code result
P2034
Exhaust Gas Temperature Sensor Circuit
Moderate severity
What it means
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?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
EGT sensor element failed
highOne of the most commonly reported causes for this code — check this first.
Open wire in EGT harness
mediumA plausible cause — test and verify before replacing parts.
Connector corroded by exhaust heat
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2034 freeNo credit card required