Honda Prelude 1993 Service Manual page 259

System Description
Vacuum Connections
H23A1 ongino (USA: Si/Canada: SR)
H22A1 ongine {USA: Si VTEC/Canada: SR-V}
@ II{TAKE AIR BYPASS IIABI VACUUM TANK
@ ra{TAKE ArR BYPASS 0AB) CHECI( VALVE
@ II{TAKE COI{TROL DIAPHRAGM
@ tt{TAKE COIT|TROL SOLENOTD VALVE
@ I TAKE CONTROL VACUUM TANK
@ INTAKE CONTROL CHECK VALVE
@ THREE WAY CATALYTTC CONVERTEn (TWCI
@ postT|vE CRANKCASE VENTILATTON
{FCV) VALVE
@ EXHAUST GAS BECTRCULAIION
(EGRI VALVE
@ EXHAUST GAS RECIRCULATION
(EGR} VALVE LIFT
SENSOR
@ EXHAUST GAS REC|RCULAT|OII
(EGRI VACUUM
CONTBOL VALVE
@ EXHAUST GAS RECTRCULATTON {EGR} CONTROL
SOLENOID VALVE
@ EVAPORATTVE
EM|SS|OT{ (EVAP} CONTROL CAt{ISTER
@ EVAPORATTVE
EMTSSION (EVAP) PURGE COI{TROL
SOLENOID VALVE
@ EVAPORATTVE EMTSSTON {EVAP} PURGE CONTROL
DIAPHRAGM VALVE
@ EvapoRATtvE EMtsstoN {EvaPl rwo wAY vALvE
1 1 - 1 0
o) HEATED
oxycEN sENsoR (Ho2s) \--J@
O MANIFOLD ABSOLUTE PRESSURE {MAPI SENSOR
O ENGINE COOLANT TEMPERATURE
(ECT) SENSOR
@ TNTAKE AIR TEMPERATURE
(IAT} SEI{SOR
@ KNocK sENsoR (Ksl
@ |DLE AtR co rRoL flact vALvE
O IDLE ADJUSTING SCREW
@ FAST IDLE THERMO VALVE
@ STABTING AIR VALVE
@ FUEL [rtJEcToR
@ FUEL FILTEB
@ FUEL PRESSURE REGULATOF
@ FUEL PUMP
@ FUEL TANK
@ AIR CLEANER
@ RESONATOR
@ INTAKE AIR BYPASS (IAB} COIIITROL DIAPHRAGM
@ TNTAKE AtR BYPASS flABl CONTROL SOLENOID VALVE