## Fuel and Emissions Systems

#### System Descriptions (cont'd)

11-15

Vacuum Distribution

1. ENGINE COOLANT.
2. (D17A9 ENGINE)

(1) | PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) (SENSOR 1) | (13) | FUEL PRESSURE REGULATOR
|  | (14) | FUEL PUMP
(2) | SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2) | (15) | FUEL TANK
|  | (16) | AIR CLEANER
(3) | MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR | (17) | RESONATOR
(4) | ENGINE COOLANT TEMPERATURE (ECT) SENSOR | (18) | EXHAUST GAS RECIRCULATION (EGR) VALVE and POSITION SENSOR
(5) | INTAKE AIR TEMPERATURE (IAT) SENSOR |  |
(6) | CRANKSHAFT POSITION (CKP) SENSOR | (19) | POSITIVE CRANKCASE VENTILATION (PCV) VALVE
(7) | KNOCK SENSOR | (20) | THREE WAY CATALYTIC CONVERTER
(8) | IDLE AIR CONTROL (IAC) VALVE | (21) | EVAPORATIVE EMISSION (EVAP) CANISTER
(9) | THROTTLE BODY | (22) | EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE
(10) | INJECTOR |  |
(11) | FUEL PULSATION DAMPER | (23) | EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE
(12) | FUEL FILTER