Engine and Emission Control Parts Description

The detonation sensor is attached to the cylinder block and senses engine knocking conditions. A knocking vibration from the cylinder block is applied as pressure to the piezoelectric element. This vibrational pressure is then converted into a voltage signal which is delivered as output.

The solenoid valve responds to the ON/OFF signal from the E.C.U. When it is ON, a vacuum signal from the suction pipe or compressor outlet is fed into the wastegate valve actuator. The actuator is hard to open at this time. When the control unit sends an OFF signal, the coil pulls the plunger upward and cuts the route to the suction pipe.

The recirculation valve reduces the noise occurring in the compressor of the turbocharger during deceleration. This valve recirculates air compressed downstream of the intercooler to upstream of the compressor using the intake manifold vacuum that occurs when the throttle chamber is suddenly closed. The recirculation valve also must not be disassembled or adjusted.

The specially designed fuel filter has a metal case in order to withstand high fuel pressure.

The diagnostic connector for CONSULT is located behind the fuse box cover.