P0299

P0299

Diagnosis information - Control unit DME (DFI)

Control deviation Boost pressure

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

- then steady driving

Possible fault causes
- Leaks between Turbocharger (pressure-side) and Intake valve (Engine)
- Leaks between Diverter solenoid valve and Turbocharger or Engine
- Vacuum hose leaks to Frequency valve, boost control or Diverter solenoid valve
- Diverter solenoid valve not installed or installed incorrectly
- Diverter solenoid valve leaks or stuck
- Diverter valve not installed or installed incorrectly
- Diverter valve leaks or stuck
- Frequency valve, boost control electric or mechanical open blocked
- Wastegate Mechanical fault , leaks or open blocked
- Turbocharger (1 or 2) stiff or stuck

Fault setting condition(s)
- Boost pressure (measured) < Nominal value (dependent from Operating condition)