Powertrain
generic / SAE
P0236
Turbocharger/Supercharger Boost Sensor "A" Circuit Range/Performance
The boost pressure A signal stays within electrical limits but does not match expected values for the current operating point. Typical causes are leaking charge piping, a stuck wastegate, or sensor drift.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / 36
Possible causes
- Charge air piping leaking high
- Wastegate stuck or seized medium
- Sensor drift 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: possible
- Estimated cost: 80–800 €
- Estimated time: 0.5–3.5 h
- Component: boost pressure sensor
- Component: charge air piping
- Component: wastegate
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012