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P2033 — EGT Sensor Circuit Range Bank 1
CautionAftertreatmentLimp to the next safe stop
Seen on: Heavy Truck/Diesel
EGT Sensor Circuit Range Bank 1. Common causes: Exhaust temp sensor failure.
Don't risk it — get a diesel tech on the truck.
Your code rides along, so nearby mechanics see the fault before they quote you.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- Exhaust temp sensor failure
- Wiring corrosion
- sensor fouling
First moves (roadside)
- Inspect EGT sensor connector
- measure resistance
- replace if drifted
FAQ
What does P2033 mean?
EGT Sensor Circuit Range Bank 1. Common causes: Exhaust temp sensor failure.
How serious is P2033?
Caution — Limp to the next safe stop.
What's the most likely cause of P2033?
The most common cause is: Exhaust temp sensor failure. Other possibilities include Wiring corrosion; sensor fouling.
Can I keep driving with P2033?
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Throwing this code right now?
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General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.