Powertrain
generic / SAE
P2D23
Turbocharger Interstage Pressure Sensor A Circuit Low
The ECM detects a circuit low fault on the turbocharger interstage pressure sensor a circuit. Reading cannot be used reliably for control.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberD / 23
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–800 €
- Estimated time: 1–4 h
- Component: turbo interstage pressure sensor a
- Component: wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012