P2428: Exhaust Gas Temperature Too High Bank 1
Standardized SAE J2012 code · P24xx — Auxiliary emission controls
What does P2428 mean?
An EGT sensor on bank 1 reports a temperature above the safety threshold for prolonged operation - typical for blocked DPF, restricted exhaust, or excessive fuelling. Risk of catalyst, DPF or turbo damage.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High DPF blocked or active regeneration
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2428 on the same make and model first.
P2428 in the community
Ask about P2428No one has posted about P2428 yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your P2428 problem