Tion solenoid (pierburg)

TION SOLENOID (PIERBURG)

This solenoid, controlled permanently by the ECU, carries out direct, continuous control of turbo pressure according to engine rpm and throttle position. Maximum possible turbo pressure (absolute) is 2200 mbar.

The ECU is also able to correct these pressure values in the presence of other values such as inlet air temperature, knock and barometric pressure.

Operation of piloted turbo device

Turbo device control solenoid (4) is piloted permanently by injection-ignition control ECU (5) via terminal 21.

Control solenoid (4) is three-way (A-B-C).

Duct A is connected by sleeve (1) to actuator (6) of the Wastegate valve.

Duct B is connected to turbo pressure relief duct by sleeve (2).

Duct C is connected by sleeve (3) to turbo intake duct.