OBD-II code · Powertrain (generic, extended)
P2428 Exhaust Gas Temperature Too High Bank 1
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.
Is it safe to drive with P2428?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyDPF blocked or active regeneration
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–8 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Gas Temperature Sensor B1, Dpf B1
Related codes
- P2429Exhaust Gas Temperature Too High Bank 2
- P2425EGR Cooling Valve Control Circuit Open
- P2426EGR Cooling Valve Control Circuit Low
- P2427EGR Cooling Valve Control Circuit High
- P242AExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3
- P242BExhaust Gas Temperature Sensor Circuit Range or Performance Bank 1 Sensor 3
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.