200SX L4-1998cc 2.0L DOHC MFI (SR20DE) (1995)
EGR & Canister Control Solenoid Valve: Description and Operation
EGR VALVE AND CANISTER CONTROL SOLENOID VALVE (DTC: P1400)
The Exhaust Gas Recirculation (EGR) valve and canister control solenoid valve responds to signals from the Engine Control Module (ECM).
When the ECM sends an ON (ground) signal, the coil in the solenoid valve is energized. A plunger will then move to cut the vacuum signal from
the throttle body to the EGR valve and canister purge valve.
When the ECM sends an OFF signal, the vacuum signal passes through the solenoid valve. The signal then reaches the EGR valve and carbon
canister.