Hyundai Sonata LF: Engine Control System / RCV Control Solenoid Valve Description and Operation
Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / RCV Control Solenoid Valve Description and Operation
| Description |
RCV (Recirculation Valve) Control Solenoid Valve is installed
on the cooling pan motor top and operates the RCV actuator which
controls the by-pass passage of the turbo-charger compressor.
When the throttle valve is closed during engine running
[Tip-out], crash noise of the impeller will occur because of rapid
increasing of the boost pressure. So, in this case, in order to prevent
this phenomenon, ECM maintains the appropriate boost pressure by opening
the by-pass passage.
Electric WGT Control Actuator Repair procedures
Inspection [Motor] 1. Turn ignition switch OFF. 2. Disconnect the EWGA connector. 3. Check that the EWGA is stuck by foreign material. 4...
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Removal Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. 1. Drain engine coolant so that its level would be under the thermostat height. 2. Remove the radiator lower hose...
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