L-Series Sedan (4 Door) 2WD F4-1781cc 1.8L SOHC (MPFI) (1985)
_2wd/f4-1781cc_1.8l_sohc_(mpfi)/Page-630001.png)
EGR Control Solenoid: Description and Operation
Exhaust Gas Recirculation System
PURPOSE
Controls when EGR operation occurs.
LOCATION
On the left side of the intake manifold near the thermostat housing
OPERATION
The EGR control solenoid valve is in the vacuum line between the throttle body and EGR valve. When energized by the ECU, the valve opens
allowing vacuum to the EGR valve diaphragm, opening the EGR valve. The control unit calculates various inputs such as engine temperature and
speed in determining when to operate the solenoid valve.
