DPF diagnosis
A DPF warning can result from soot loading, failed regeneration, sensor problems or an underlying engine fault. We use fault codes and relevant data to help distinguish the symptom from the cause.
EGR fault diagnosis
EGR faults can cause warning lights, rough running, hesitation, smoke or reduced power. Diagnosis may include checking commanded and actual values, related air-path readings and stored faults.
Symptoms we investigate
- DPF or engine warning lights
- Frequent or failed regeneration
- Limp mode and loss of power
- EGR flow or position fault codes
- Excess smoke or poor fuel economy
Road vehicles must retain legally required emissions equipment. We focus on accurate diagnosis and appropriate repair advice.