Powertrain
generic / SAE
P044B
EGR Sensor C Circuit Range/Performance
A general electrical fault on EGR sensor C — used as a third feedback (e.g. EGR delta-pressure or third position sensor) on advanced EGR systems.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 4B
Possible causes
- Sensor drift high
- Sensor element aged beyond calibration window low
- Sensor mounting loose - signal damping low
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–500 €
- Estimated time: 0.5–2.5 h
- Component: egr valve
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012