Content .. 84 85 86 87 ..

Honda Odyssey 2004. Manual - part 86

−

２８

Vacuum Distribution

’99-00 Models

11-42

Fuel and Emissions Systems

System Descriptions (cont’d)

To
ENGINE
MOUNT

ENGINE
COOLANT

AIR CLEANER

FUEL TANK

FUEL PUMP (FP)

FUEL PRESSURE REGULATOR

FUEL FILTER

THROTTLE BODY (TB)

FUEL INJECTION AIR (FIA) CONTROL VALVE
IDLE AIR CONTROL (IAC) VALVE

INTAKE AIR TEMPERATURE (IAT) SENSOR

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

PRIMARY HEATED OXYGEN SENSOR
(PRIMARY HO2S) (SENSOR 1)
SECONDARY HEATED OXYGEN SENSOR
(SECONDARY HO2S) (SENSOR 2)

INJECTOR
FUEL PULSATION DAMPER

RESONATOR

KNOCK SENSOR (KS)

AIR TEMPERATURE CONTROL VALVE
AIR VALVE

EXHAUST GAS RECIRCULATION (EGR) VALVE and
LIFT SENSOR

ENGINE MOUNT CONTROL SOLENOID VALVE

FUEL TANK PRESSURE (FTP) SENSOR

EVAPORATIVE EMISSION (EVAP) BYPASS
SOLENOID VALVE

EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE

EVAPORATIVE EMISSION (EVAP) CANISTER
VENT SHUT VALVE

EVAPORATIVE EMISSION (EVAP) PURGE CONTROL
SOLENOID VALVE

EVAPORATIVE EMISSION (EVAP) CONTROL
CANISTER FILTER

EVAPORATIVE EMISSION (EVAP) CANISTER

THREE WAY CATALYTIC CONVERTER

POSITIVE CRANKCASE VENTILATION (PCV) VALVE

FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE

03/07/29 09:18:07 61S0X050_110_0042

−

２９

Vacuum Distribution

’01 Model

11-43

To
ENGINE
MOUNT

ENGINE
COOLANT

EXHAUST GAS RECIRCULATION (EGR) VALVE and
POSITION SENSOR

ENGINE MOUNT CONTROL SOLENOID VALVE

FUEL TANK PRESSURE (FTP) SENSOR

EVAPORATIVE EMISSION (EVAP) BYPASS
SOLENOID VALVE

EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE

EVAPORATIVE EMISSION (EVAP)
CANISTER VENT SHUT VALVE

EVAPORATIVE EMISSION (EVAP) CANISTER PURGE
VALVE

EVAPORATIVE EMISSION (EVAP) CONTROL
CANISTER FILTER

EVAPORATIVE EMISSION (EVAP) CANISTER

THREE WAY CATALYTIC CONVERTER

POSITIVE CRANKCASE VENTILATION (PCV) VALVE

FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE
FUEL TANK VAPOR CONTROL VALVE
FUEL TANK VAPOR RECIRCULATION VALVE

AIR CLEANER

FUEL TANK

FUEL PUMP (FP)

FUEL PRESSURE REGULATOR

FUEL FILTER

THROTTLE BODY (TB)

INTAKE AIR BYPASS CONTROL THERMAL VALVE
IDLE AIR CONTROL (IAC) VALVE

INTAKE AIR TEMPERATURE (IAT) SENSOR

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

PRIMARY HEATED OXYGEN SENSOR (PRIMARY
HO2S) (SENSOR 1)
SECONDARY HEATED OXYGEN SENSOR
(SECONDARY HO2S) (SENSOR 2)

INJECTOR
FUEL PULSATION DAMPER

RESONATOR

KNOCK SENSOR (KS)

AIR TEMPERATURE CONTROL VALVE
AIR VALVE

(cont’d)

03/07/29 09:18:08 61S0X050_110_0043

−

１５

Vacuum Distribution

’02-04 Models

11-44

Fuel and Emissions Systems

System Descriptions (cont’d)

To
ENGINE
MOUNT

ENGINE
COOLANT

To
ENGINE
MOUNT

ENGINE
COOLANT

EXHAUST GAS RECIRCULATION (EGR) VALVE and
POSITION SENSOR

ENGINE MOUNT CONTROL SOLENOID VALVE

FUEL TANK PRESSURE (FTP) SENSOR

EVAPORATIVE EMISSION (EVAP) BYPASS
SOLENOID VALVE

EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE

EVAPORATIVE EMISSION (EVAP)
CANISTER VENT SHUT VALVE

EVAPORATIVE EMISSION (EVAP) CANISTER PURGE
VALVE

EVAPORATIVE EMISSION (EVAP) CONTROL
CANISTER FILTER

EVAPORATIVE EMISSION (EVAP) CANISTER

THREE WAY CATALYTIC CONVERTER

POSITIVE CRANKCASE VENTILATION (PCV) VALVE

FUEL TANK EVAPORATIVE EMISSION (EVAP) VALVE
FUEL TANK VAPOR CONTROL VALVE
FUEL TANK VAPOR RECIRCULATION VALVE

AIR CLEANER

FUEL TANK

FUEL PUMP (FP)

FUEL PRESSURE REGULATOR

FUEL FILTER

THROTTLE BODY (TB)

INTAKE AIR BYPASS CONTROL THERMAL VALVE
IDLE AIR CONTROL (IAC) VALVE

INTAKE AIR TEMPERATURE (IAT) SENSOR

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

PRIMARY HEATED OXYGEN SENSOR (PRIMARY
HO2S) (SENSOR 1)
SECONDARY HEATED OXYGEN SENSOR
(SECONDARY HO2S) (SENSOR 2)

INJECTOR
FUEL PULSATION DAMPER

KNOCK SENSOR (KS)

RESONATOR

03/07/29 09:18:10 61S0X050_110_0044

１６

＊０６

＊０７

PGM-FI System

A/C Compressor Clutch Relay

A/C Switch

Alternator Control

Barometric Pressure (BARO) Sensor

Camshaft Position (CMP) (Top Dead Center (TDC))
Sensor

Crankshaft Position (CKP) Sensor

Engine Coolant Temperature (ECT) Sensor

Ignition Timing Control

Injector Timing and Duration

11-45

CMP (TDC) SENSOR A

CMP (TDC) SENSOR B

CKP SENSOR

THERMISTOR

The Programmed Fuel Injection (PGM-FI) system is a
sequential multiport fuel injection system.

When the PCM receives a demand for cooling from the
A/C system, it delays compressor engagement, and
enriches the mixture to assure smooth transition to the
A/C mode.

The A/C (air conditioning) switch signals the PCM
whenever there is a demand for cooling.

The alternator signals the PCM during charging. The
PCM then controls the voltage generated by the
alternator according to the electrical load determined
by the Electrical Load Detector (ELD) and driving mode.
This reduces engine load to improve fuel economy.

The BARO sensor is inside the PCM. It converts
atmospheric pressure into a voltage signal that
modifies the basic duration of the fuel injection
discharge.

The CMP (TDC) A/B sensor input is used by the PCM to
determine ignition timing at start up (cranking) and
when crank angle is abnormal.

The CKP sensor input is used by the PCM determine
timing for fuel injection of each cylinder and to detect
engine speed.

The ECT sensor is a temperature dependent resistor
(thermistor). The resistance of the thermistor decreases
as the engine coolant temperature increases.

The PCM contains the memory for basic ignition timing
at various engine speeds and manifold absolute
pressure. It also adjusts the timing according to engine
coolant temperature.

The PCM contains the memory for basic discharge
duration at various engine speeds and manifold
pressures. The basic discharge duration, after being
read out from the memory, is further modified by
signals sent from various sensors to obtain the final
discharge duration.
By monitoring Long Term Fuel Trim, the PCM detects
long term malfunctions in the fuel system, and sets a
diagnostic trouble code (DTC).

(cont’d)

03/07/29 09:18:10 61S0X050_110_0045

Content .. 84 85 86 87 ..