Vacuum Connections
CONTROL
BOX
page 11-8
EVAP PURGE FLOW
SWITCH
INTAKE
AIR
BYPASS
(IAB)
DIAPHRAGM
FUEL PRESSURE
REGULATOR
EVAP
PURGE CONTROL
DIAPHRAGM VALVE
EVAP CONTROL
CANISTER
FRONT OF
VEHICLE
EGR VALVE
LIFT SENSOR
To EVAP TWO-WAY
VALVE
EGR VALVE
System Description
Vacuum Connections (cont’d)
Control Box
EVAPORATIVE EMISSION
(EVAP) PURGE CONTROL SOLENOID VALVE
EXHAUST GAS RECIRCULATION
(EGR) CONTROL SOLENOID VALVE
EXHAUST GAS RECIRCULATION (EGR)
VACUUM CONTROL VALVE
MANIFOLD ABSOLUTE
PRESSURE (MAP) SENSOR
INTAKE AIR BYPASS
(IAB) CONTROL SOLENOID
VALVE
Troubleshooting,
page 11-155
INTAKE AIR BYPASS (IAB) CHECK VALVE
INTAKE AIR BYPASS (IAB) VACUUM TANK
For Troubleshooting of DTC related components, see chart on page 11-52.
Vacuum hose No.
FRONT PRIMARY HEATED OXYGEN SENSOR (HO2S)
(BANK 2, SENSOR 1)
REAR PRIMARY HEATED OXYGEN SENSOR (HO2S)
(BANK 1, SENSOR 1)
FRONT SECONDARY HEATED OXYGEN SENSOR (HO2S)
(BANK 2, SENSOR 2)
REAR SECONDARY HEATED OXYGEN SENSOR (HO2S)
(BANK 1. SENSOR 2)
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
INTAKE AIR TEMPERATURE (IAT) SENSOR
FRONT KNOCK SENSOR (KS2)
REAR KNOCK SENSOR (KS1)
AIR CLEANER (ACL)
FUEL INJECTOR
FUEL PRESSURE REGULATOR
FUEL FILTER
FUEL PUMP (FP)
FUEL TANK
FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE
INTAKE AIR BYPASS (IAB) CHECK VALVE
INTAKE AIR BYPASS (IAB) VACUUM TANK
INTAKE AIR BYPASS (IAB) CONTROL SOLENOID VALVE
INTAKE AIR BYPASS (IAB) CONTROL DIAPHRAGM
FRONT THREE WAY CATALYTIC CONVERTER (TWC)
REAR THREE WAY CATALYTIC CONVERTER (TWC)
POSITIVE CRANKCASE VENTILATION (PCV) VALVE
EXHAUST GAS RECIRCULATION (EGR) VALVE
EXHAUST GAS RECIRCULATION (EGR) VALVE LIFT SEN-
SOR
EXHAUST GAS RECIRCULATION (EGR) VACUUM CONTROL
VALVE
EXHAUST GAS RECIRCULATION (EGR) CONTROL
SOLENOID VALVE
EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER
EVAPORATIVE EMISSION (EVAP) PURGE CONTROL
SOLENOID VALVE
EVAPORATIVE EMISSION (EVAP) PURGE CONTROL
DIAPHRAGM VALVE
EVAPORATIVE EMISSION (EVAP) PURGE FLOW SWITCH
EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE