Powertrain
generic / SAE
P047A
Exhaust Pressure Sensor B Circuit
A general electrical fault on exhaust pressure sensor B — used to monitor backpressure across the DPF or to control variable-geometry turbo.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 7A
Possible causes
- Sensor failed high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–500 €
- Estimated time: 0.5–2.5 h
- Component: exhaust pressure sensor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012