P0234

P0234

Boost Pressure Control Limit Exceeded - Above Limit

Diagnosis conditions
- Battery positive voltage between 10 V and 16 V
- Engine speed between 1,800 rpm and 6,500 rpm
- Acceleration with wide-open throttle in third gear without gearshift

Possible fault cause
- Leak ahead of throttle (less than 4 mm)
- Boost pressure control solenoid mechanically faulty
- Bypass valve (waste gate) faulty

Diagnosis/troubleshooting