2003 HONDA CIVIC CAmshaft

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Page 232 of 1139

HONDA CIVIC 2003 7.G Workshop Manual Vacuum Hose Routing
I
O AIR FUEL RATIO IA/F) SENSOR {SENSOR 1}O SECONDARY HEATED OXYGEN SENSORISECONDARY HO2S} {SENSOR 2}
O MANIFOLD ABSOLUTE PRESSURE (MAPI SENSORO ENGINE COOLANT TEMPERATURE {ECT) SE

Page 233 of 1139

HONDA CIVIC 2003 7.G Workshop Manual Fuel and Emissions Systems
System Descriptions (contd)
PGM-FI System
The Programmed Fuel Injection (PGM-Fl) system is a
sequential multiport fuel injection system.
Air Conditioning {A/C) Compressor G

Page 236 of 1139

HONDA CIVIC 2003 7.G Workshop Manual wEc/wc
The i-WEC has a VTC (Variable Valve Timing Control) mechanism on the intake camshaft in addition to the usual
VTEC.
This mechanism improves fuel efficiency and reduces exhaust emissions at all

Page 238 of 1139

HONDA CIVIC 2003 7.G Workshop Manual System Diagram
INTAKE
CMP SENSOR A
BRN/YELBLU/WHT
BLU/WHT
BLK/WHT
GRN/YEL
BLU/BLK
From No. ilACC {10A) fuse
VARIOUSSENSORS
CAMSHAFT -:-
BLK
It
Camshaft Position {CMP} Sensor
The CMP sensor detects cam

Page 256 of 1139

HONDA CIVIC 2003 7.G Workshop Manual PGM-FI System
Component Location Index
CAMSHAFT POS]TION {CMP) SENSOR B(TOP DEAD CENTER (TDC}SENSORITroubleshootina. oaoe 1 1-95Replacement, p;ge 1-1.1 14
ELECTRICAL LOADDETECTOR {ELDITroubleshooting,

Page 278 of 1139

HONDA CIVIC 2003 7.G Workshop Manual DTC P0300: Random Misfire and Any Combination of the Following:
DTC P0301: No. 1 Cylinder Misfire
DTC P0302: No. 2 Cvlinder Misfire
DTC P0303: No, 3 Cvlinder Misfire
DTC P0304: No. 4 Cvlinder Misfire

Page 302 of 1139

HONDA CIVIC 2003 7.G Workshop Manual 3.
4.
5.
6.
DTC Pl361: Camshaft Position (CMP) Sensor
B (TDC Sensor) Intermittent Interruption
DTC Pl362: Camshaft Position (CMP) Sensor
B (TDC Sensor) No Signal
1. Reset the ECM (see page 11-4).
2. S

Page 306 of 1139

HONDA CIVIC 2003 7.G Workshop Manual 19. Disconnect each of the components or the
connectors below, one at a time, and check for
continuity between PGM-FI main relay 1 4P
connector terminal No. 1 and body ground.
. PGfvl-Fl main relay 2.
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