P0049

P0049

Diagnosis information - Control unit DME (DFI)

Turbocharger Overspeed protection

Diagnostic conditions
- Full-throttle acceleration

Possible fault causes
- Ambient pressure too low (e.g. at great height)
- Boost pressure too high (P0234) at great height

Fault setting condition(s)
- Turbocharger exceeds speed limits --> approx. 170,000... 180,000 1/mm (See [Information])

Fault effects
- Reduction Engine torque
- Wastegate open

INFORMATION
The turbocharger's speed is calculated from various input variables.