P1638

P1638

Diagnosis information - Control unit DME (DFI)

Boost-pressure sensor (Pressure sensor forward Throttle valve valve) Electrical fault

Diagnostic conditions
- Ignition on or Engine running
- none of the following faults stored : P0234

Possible fault causes
- Short circuit to B+/ground/between lines or open circuit in the lines
- Ground supply defective
- Boost-pressure sensor Faulty
- Only if fault P0107 or P0108 (Intake manifold pressure sensor sensor) is entered at the same time:
- Vacuum hose leaks to Frequency valve, boost control or Wastegate
- Frequency valve, boost control leaks
- Wastegate leaks

Fault effects
- Substitute value from model