P0234

P0234

Diagnosis information - Control unit DME (DFI)

Boost pressure control limit exceeded

Diagnostic conditions
- 3 X Full-throttle acceleration :
- 3rd gear (without Gear change)
- Engine speed between 1500 1/min and Max. engine speed

Possible fault causes
- Vacuum hose leaks to Frequency valve, boost control or Wastegate
- Frequency valve, boost control Faulty (Mechanical fault or leaks)
- Wastegate Faulty (Mechanical fault or leaks)

Fault setting condition(s)
- Boost pressure (measured) > Nominal value (dependent from Operating condition)
- Deviation Boost pressure (measured) CLOSED Ambient pressure > 2 Second(s) too high