RCV (Recirculation Valve) Control Solenoid Valve is installed
on the intercooler inlet pipe and operates the RCV actuator which
controls the by-pass passage of the turbocharger compressor.
When the throttle is closed, while the engine is running at
cruise rpm (tip-out), the turbocharger boost pressure raises rapidly.
The pressure wave strikes a compressor blades causing a knocking noise.
To prevent this the ECM opens the recirculation valve which allows
excessive boost pressure to vent back to the air cleaner side of the
turbocharger compressor.
Inspection
[Motor]
1.
Turn ignition switch OFF.
2.
Disconnect the EWGA connector.
3.
Check that the EWGA is stuck by foreign material.
4.
Measure resistance between motor (+) and ( ...
Description and Operation
Description
The Evaporative Emission Control System prevents fuel vapor
stored in fuel tank from vaporizing into the atmosphere. When the fuel
evaporates in the fuel tank, the vapor passes thro ...