P0299 Fault Code

P0299 Boost Pressure: Underboost

Component / System

Boost Pressure Underboost

Monitor Strategy Description

Comparison of actual boost pressure to a modeled boost pressure

Fault Limit

Delta = Actual boost pressure Modeled boost pressure <

Enable Conditions

Engine Speed 1350 - 1700 RPM
EGR Position 10 - 96%
VGT Position 5 - 90%
Ambient Air Temperature -8 - 55 °C
Barometric Pressure 75 - 105 kPa
Coolant Temperature > 65 °C

Disable Conditions

No Active DTC's:
P0069, P0726, P0106, P0490, P045F, P045E, P2563, P0045, U010C, U040D,P2578, P2581, P2580, P0069, U010C, P2229

Time Required For P0299 DTC To Be Set

5 Seconds

MIL Illumination

2 Drive Cycles

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Don't forget ! When a fault code pops up, Volvo's Uptime Center is automatically notified via an cellular link, and it alerts the truck's owner by prearranged methods, usually email or phone calls.