Honda HR-V: PGM-FI System Description - Components (KA/KC)
- FUEL FILL CAP
- FUEL TANK VAPOR/LIQUID
SEPARATION VALVE
- FUEL TANK
- FUEL PRESSURE REGULATOR
- FUEL PUMP
- FUEL FILTER
- AIR FUEL RATIO (A/F) SENSOR
(SENSOR 1)
- WARM UP THREEWAY CATALYTIC
CONVERTER (WU-TWC)
- UNDER-FLOOR THREEWAY
CATALYTIC CONVERTER (UNDERFLOOR
TWC)
- SECONDARY HEATED OXYGEN
SENSOR (SECONDARY HO2S)
(SENSOR 2)
- FUEL TANK PRESSURE (FTP)
SENSOR
- FUEL INJECTOR
- CAMSHAFT POSITION (CMP)
SENSOR
- OIL PRESSURE SWITCH
- EVAPORATIVE EMISSION (EVAP)
CANISTER
- ENGINE COOLANT TEMPERATURE
(ECT) SENSOR
- KNOCK SENSOR
- POSITIVE CRANKCASE VENTILATION
(PCV) VALVE
- CRANKSHAFT POSITION (CKP)
SENSOR
- EXHAUST GAS RECIRCULATION
(EGR) VALVE and VALVE POSITION
SENSOR
- INTAKE MANIFOLD TUNING (IMT)
VALVE
- AIR CLEANER
- MANIFOLD ABSOLUTE PRESSURE
(MAP) SENSOR
- EVAPORATIVE EMISSION (EVAP)
CANISTER PURGE VALVE
- THROTTLE BODY
- MASS AIR FLOW (MAF)
SENSOR/INTAKE AIR TEMPERATURE
(IAT) SENSOR
- EVAPORATIVE EMISSION (EVAP)
CANISTER VENT SHUT VALVE
- INTAKE AIR RESONATOR
PGM-FI SYSTEM DESCRIPTION - ELECTRONIC CONTROL
The powertrain control module (PCM) consists of a CPU memory (storage unit)
and Input/Output that control
the fuel injection, injection timing, idling and electronic throttle control
system (ETCS).
Fail-Safe Function
When a malfunction occurs in the signal from a sensor or from another control
unit, the PCM ignores that signal
and substitutes a pre-programmed value that allows the engine to continue
running. This causes a Confirmed
DTC to be stored and the MIL to come on.
Updated Function
The PCM has a rewritable ROM. The ROM can acquire the latest version of the
program using the MVCI.
MIL Bulb Check and Readiness Code Condition
When the vehicle is turned to the ON mode, the PCM turns on the MIL via the
F-CAN circuit for about 15 to 20
seconds to check the bulb condition. USA and Canada models: If any readiness
codes are not set to complete,
the MIL flashes five times. If all readiness codes are set to complete, the MIL
goes off.
Self Shut Down (SSD) Mode
After the vehicle is turned to the OFF (LOCK) mode, the PCM stays on for up
to an hour. If a PCM connector is
disconnected during this time, the PCM may be damaged. To cancel this mode,
disconnect the negative cable
from the 12 volt battery or jump the SCS line with the HDS after the vehicle is
turned to the OFF (LOCK)
mode.
Engine Compartment PCM
For serviceability and weight reduction, the wire harness has been shortened.
The PCM is now positioned in the
engine compartment. To ensure PCM operation in the engine compartment, the PCM
main body and the
connectors are water-proof. When diagnostic/troubleshooting is done at the PCM
connector, use the terminal
test port above the terminal you need to check, not the wire side.
PGM-FI SYSTEM DESCRIPTION - IGNITION TIMING CONTROL
The powertrain control module (PCM) contains the memory for basic ignition
timing at various engine speeds
and manifold absolute pressures. It also adjusts the timing according to engine
coolant temperature and intake
air temperature.
READ NEXT:
Fuel injection controls include fuel injection amount control, fuel cut
control and fuel pump control. Adopting
PGM-FI (programmed-fuel injection) technology enables accurate fuel controls,
which co
Overview
For an easy analysis of problems caused by engine stalls and starting
problems, the powertrain control module
(PCM) uses an on-board snapshot to record the operational conditions at the time
Overview
This system improves fuel efficiency and reduces exhaust emissions at all
levels of engine speed, vehicle speed,
and engine load. The VTEC mechanism changes the valve lift and timing by usin
SEE MORE:
DTC (Power Control Unit)
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body
Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial
Communication and DTC Checks,.
Before troubleshooting
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If so, verify
that all the required components were replaced with new components of the
correct part number,
and that they were properly installed.
Before doing this troubleshooting procedure, rev