What does P2033 mean?
Exhaust gas temperature (EGT) sensors watch exhaust temperature around the turbo, catalyst and DPF, especially during regeneration.
High voltage on a temperature sensor means the computer sees an open circuit and reads extremely cold.
Codes are a starting point. They tell you which test failed, not which part to replace. Check for other stored codes and fix those in a sensible order.
Symptoms
- Check engine light
- DPF regeneration disabled
- Possible reduced power
Common causes
- Sensor unplugged or connector broken
- Open signal or ground wire
- Sensor open internally
How to diagnose P2033
- Look at live data: an open circuit will read around -40 F.
- Jumper the two connector pins together with a fused jumper. The reading should swing to a very hot value. If it does, the sensor is open; if not, check the wiring.
- Check sensor resistance against the service spec.
- Compare all EGT readings after a cold soak; they should be close to air temperature.
- Check sensor resistance and wiring.
How to fix it
- Replace the EGT sensor
- Repair wiring
Estimated repair cost
Likely repairs for P2033 run from about $100 to $350, depending on the cause.
| Repair | Typical range (parts + labor) |
|---|---|
| Diagnostic fee (scan + testing) | $100 - $200 |
| Exhaust gas temperature sensor | $100 - $350 |
These are rough US estimates for an independent shop in 2026, based on typical parts prices and standard labor times. Dealers, big trucks, luxury brands and high-cost areas often run higher. They are not quotes. Use the repair cost estimator to adjust for your vehicle.
How serious is P2033?
Moderate severity
Drivable short term, but regens may be blocked and the DPF can load up.
P2033 FAQ
What does P2033 mean?
P2033 stands for "Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)". Exhaust gas temperature (EGT) sensors watch exhaust temperature around the turbo, catalyst and DPF, especially during regeneration.
Can I drive with a P2033 code?
Drivable short term, but regens may be blocked and the DPF can load up.
How much does it cost to fix P2033?
It depends on the cause. The likely repairs for P2033 range from about $100 to $350 at an independent shop in the US, plus a diagnostic fee of roughly $100-$200. These are rough estimates; dealer prices and some vehicles run higher.
What is the most common cause of P2033?
The most common causes are: sensor unplugged or connector broken; open signal or ground wire; sensor open internally.