Turbocharger Operation: Notes

Turbocharger is an option on the 2.2L equipped Probe. On acceleration, turbocharger boost pressure is controlled by a wastegate/actuator assembly. Operation of the wastegate is controlled by a solenoid valve. If a fault develops in the system, boost pressure will not be controlled and overboost will occur. If overboost occurs, the knock control system will retard spark advance and ECA will activate overboost warning chime.

The turbocharger assembly includes the turbine, compressor, wastegate, actuator, and intercooler. The turbocharger system includes the boost control solenoid, intercooler, knock sensor, knock control unit, overboost warning device, and vane air temperature sensor.