Advanced Diagnostics

Advanced Diagnostics - DTC P2263: Turbocharger Boost System Performance Problem










General Description
This turbocharged engine is equipped with a mass airflow (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 P or N) until the radiator fan comes on.
2. Accelerate under boost, with partial throttle, above 1,500 rpm, for at least 2.0 seconds. Repeat this at least 10 times.

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

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.