Vacuum Schematics

B18B1 1.8L DOHC Non-VTEC:

(1) PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) (SENSOR 1)
(2) SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)
(3) MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
(4) ENGINE COOLANT TEMPERATURE (ECT) SENSOR
(5) INTAKE AIR TEMPERATURE (IAT) SENSOR
(6) CRANKSHAFT SPEED FLUCTUATION (CKF) SENSOR
(7) IDLE AIR CONTROL (IAC) VALVE
(8) FAST IDLE THERMO VALVE
(9) FUEL INJECTOR
(10) FUEL FILTER
(11) FUEL PRESSURE REGULATOR
(12) FUEL PUMP (FP)
(13) FUEL TANK
(14) FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE
(15) FUEL PULSATION DAMPER
(16) AIR CLEANER
(17) RESONATOR
(18) THREE WAY CATALYTIC CONVERTER (TWC)
(19) POSITIVE CRANKCASE VENTILATION (PCV) VALVE
(20) EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER
(21) EVAPORATIVE EMISSION (EVAP) PURGE CONTROL SOLENOID VALVE
(22) EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE
(23) EVAPORATIVE EMISSION (EVAP) BYPASS SOLENOID VALVE
(24) EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER VENT SHUT VALVE
(25) FUEL TANK PRESSURE SENSOR
(26) EVAPORATIVE EMISSION (EVAP) THREE WAY VALVE