Advanced Diagnostics

DTC P2263: Turbocharger Boost System Performance Problem







General Description
This turbocharged engine is equipped with a mass air flow (MAF) sensor to measure the amount of intake air, a turbocharger boost sensor to measure boost pressure before the throttle, and a barometric pressure (BARO) sensor to measure atmospheric pressure.

Solenoids operate the turbocharger boost control valves. A turbocharger wastegate control valve, and a turbocharger bypass control valve are used to control boost pressure.

Boost pressure characteristics are compared to intake air volume before boost pressure control, and if it is beyond a set value it is diagnosed as a turbocharger boost system performance problem.




Monitor Execution Sequence, Duration, DTC Type, OBD Status




Enable Conditions

Malfunction Threshold
The degree of boost pressure rise delay is 0.1 or less for at least 4.2 seconds.

Driving Pattern
1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
2. Supercharging condition which the throttle is not fully open at 1,500 rpm or more is sustained for 2.0 seconds or more when accelerating for at least 10 times.

- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details

Conditions for illuminating the MIL
When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored.

Conditions for clearing the MIL
The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.