MANUALS · FUEL [13] · страница 188 из 340 · Открыть оригинал PDF ↗

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EGR CONTROL SOLENOID VALVE

Engine control unit connector

PFuo1o1

OPERATION

The EGR control solenoid valve is adutycontrol
type solenoid valve.It makes control by leaking
EGRvalve operating negativepressuretothe
throttle body A port

Power supplyfromthe battery is sent through the
control relay to the EGR control solenoid valve
When the engine control unit turns off the power
transistor inside the unit, current no more flows
through the coil and EGR valve operating negative
pressure leaks:

TROUBLESHOOTING HINTS

If the results of EGR control solenoid valve on-vehicle
and off-vehicle inspections are normal but the self-
diagnosis code for EGR system failure is displayed,
check the EGR valve, vacuum hose and EGR passage
for blocking:

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