2003 HONDA CIVIC ECT sensor

EVAP System
DTC Troubleshooting (cont'dl
20. Plug the fueltank port (A) oftheEVAPtwoway
valve,
While monitoring FTP sensor voltage with the
Honda PGM Tester, or measuring the voltage
between ECM connector terminals E4 and E 14,
slowly pump the vacuum pump until the voitage
droDS to about 1.5 volts.
ECM CONNECTOR E {31PI
Wire side of female terminals
Does the voltage dtop to 1.5 V and hold fot at
Ieast 20 seconds?
YES-The EVAP bypass solenoid valve/EVAP two
way valve is OK. Go to step 22.
NO Repair the leak from the EVAP bypass
solenoid valve, EVAP two way valve. or
FTP sensor.l
11-178
Wire side of female terminals
EVAP Canister Vent Shut Valve Test
22. Disconnect the vacuum hose from the EVAP
canister vent filter (A), and connect a vacuum pump
to the hose.
Turn the ignitlon switch ON (ll).
Apply vacuum to the hose with five strokes of the
pump.
Does the valve hold vacuum?
YES Go to step 25.
NO The EVAP canister vent shut valve is OK. Go
to step 30.
Turn the ignition switch OFF.
Disconnect the EVAP canister vent shut valve 2P
conneclor.
Check for continuity between EVAP canister vent
shut valve 2P connector terminal No. 2 and body
ground.
EVAP CANISTEB VENT SHUTVALVE 2P CONNECTOR
{LT GRN/REOI
\
25.
26.
21.

28.
29.
ls thete continuity?
YES-Go to step 28.
NO-Replace the EVAP canister vent shut valve (A)
and o-ring (B).1
Disconnect ECM connector E (31P).
Check for continuity between EVAP canister vent
solenoid valve 2P connector terminal No. 2 and
body ground.
EVAP CANISTER VENT SHUTVALVE 2P CONNECTOR
Wire side o{ female terminals
ls there continuity?
YES-Repair short in the wire between the EVAP
canister vent shut valve and the ECM (E21).1
NO Update the ECM if it does not have the latest
soflware, or substitute a known-good ECM, then
recheck (see page 11-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
30.
Vacuum Hoses and Connections Test
Do the fuel tank vapor control valve test (see page
1 1-187).
ls the fuel tank vapot control valve OK?
YES-Go to step 31.
NO Replace the fueltank vapor control valve.l
Tighten the fuel cap 3 "clicks", then monitorthe
FTP sensor readings with the Honda PGM Tester.
Start the engine. and let it idle for 5 minutes.
Check the FTP sensor readings.
ls the reading above 0.5 kpa (4 mm Hg, 0.16 in.
Hg) pressure, or about 3 V?
YES Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck {see page 1 1-6). lf the symptom/indication
goes away with a known-good ECfvl, replace the
original ECM.t
NO Check the following parts for leaks:l
. Fueltank (A)
. Fuel fill cap (B)
. Fuel fill pipe (C)
. Fueltank vapor control valve(D). Fueltank vapor recirculation valve (E)
. Fueltank vapor recirculation tube (F)
. Fueltank vapor signaltube (G)
. Fueltank vapor control venttube(H). FTP sensor (J)
- Repair or replace any leaking parts.
5t.
11-179

25.
26.
24. Check for continuity between EVAP canister vent
shutvalve 2Pconnectorterminal No.2 and body
ground.
VATVE 2P CONNECTOR
-4-
lr 2l-T_*u
ILTGFN/REDI
@
wn€ s de ol l€ma1e terminals
ls therc continuity?
YES Go to step 25.
NO Repair open in the wire between the EVAP
canister vent shut valve and the ECIVI (E21).1
Turn the ignition switch oN (ll).
Measure voltage between EVAP canister vent shut
valve 2P connector terminal No. 1 and body ground.
EVAPCANISTER VENT SHUTVALVE 2PCONNECTOR
Wlreside oflem. € rerm na s
ls there battery voltage?
YES Replace the EVAP canister vent shut valve
(A) and the o-ring (B).I
NO Repair open in the wire between the EVAP
canister vent shut valve and the No. 4 ACG (10A)
fuse.I
Canister System Leak Test
27. Turn the ignition switch oFF.
28, Connecttwo, three-way T-fittings (A) intothehose
from the EVAP canister to the EVAP two way valve.
Connect the FTP sensor to one of the T-fittings and
the vacuum pump to the othel
29. Remove the vent hose from the EVAP canister vent
shut valve (A), and cap the port (B) to seal the fresh
air vent of the EVAP canister.
30. Turn the ignition switch ON (ll).
(cont'd)
11-183

EVAP System
DTC Troubleshooting (cont'dl
31. While monitoring FTP sensor voltage with theHonda PGM Tester, or measuring voltage betweenECM connector terminals E4 and E14, slowly pump
the vacuum oumD.
ECM CONNECTOR E 13lPI
Wire side ot female terminals
32. Continue to pump vacuum until the voltage drops
to about 1.5 V. Make sure the engine coolant
temperature is still above 95'F 135.C) and your
vacuum pump has no leak.
33. Monitor the voltage for 20 seconds.
Does the voltage drop 1.5V and hold for at least
20 seconds?
YES Inspect the EVAP canister vent shut valve
line and connections.l
NO-Go to step 34.
34. Turn the ignition switch OFF.
35. Discon nect the quick-con nect fitting (A) fromthe
EVAP canister, and plug the canister port {B).
36. Turn the ignition switch ON (ll).
11-184
42. Turn the ignition switch ON (ll).
I
38.
39.
37. While monitoring FTP sensor voltage with theHonda PGM Tester, or measuring voltage betweenECM connector terminals E4 and E 14, slowly pump
the vacuum pump.
ECM CONNECTOR E {31PI
Wire side of lemale terminals
Continue to pump vacuum until the voltage drops
to about 1.5V. Make sure the engine coolant
temperature is still above 95"F (35"C) and your
vacuum pump has no leak.
Monitor the voltage for 20 seconds
Does the voltage hold for at least 20 seconds?
YES Inspecl the fuel tank vapor control lineand
connections.I
NO Go to step 40.
Turn the ignition switch OFF.
Disconnect the purge line hose {A) from the
canister at the metal line and plug the hose (B).
40.
41.

43. While monitoring FTP sensor voltage with the
Honda PGM Tester, or measuring voltage between
ECM connector terminals E4 and E14, slowly pump
the vacuum pump.
ECM CONNECTOR E {31P)
Wire side of female terminals
Continue to pump vacuum until the voltage drops
to about 1.5V. Make sure the engine coolant
temperature is still above 95'F (35'C) and your
vacuum pump has no leak.
Monitor the voltage continuously for 20 seconds.
Does the voltage drop to 1.5 V and hold f or at
least 20 seconds?
YES Inspect the EVAP canister purge valve line
and connections. lf they are OK, perform the EVAP
two way valve test (see page 11-186) and the fuel
tank vapor control valve test (see page 1'l-187) l
NO-Replace the EVAP canister
(see page 11-189).1
44.
45.
11-185

Manual Transmission
Transmission Removal
SpecialTools Required. Engine hanger adapter.2.0 to 2.4 liter VSB02C000015. Engine hanger VSB02C000018. Engine support hanger, A & Reds AAR'T 12566'. Subframe adaDter EOS02C000011 '
* Available through the Honda Tool and Equipment
Program 888-424-6857
NOTE: Use fender covers to avoid damaging painted
surfaces.
4.
1.
7.
Write down the frequencies for the radio's preset
buttons. Disconnect the negative ( ) cable first,
then the positive ( )cable from the battery.
Remove the battery.
Remove the intake manifold cover {see page g-3).
Remove the air cleaner housing (see page 1 1-162).
Remove the intake air duct {see step 8 on page 5-3).
Remove the battery tray (A).
Disconnect the transmission ground cable (B).
Disconnect the back-up light switch connector (A)
and vehicle speed sensor (VSS) connector (B).
13-4
8. Remove the cable bracket (A). then disconnect the
cables (B) from the top of the transmission housing.
Carefully remove both cables and the bracket
together so as not to bend the cables.
9. Remove the harness clip.
I
HA @
ilB

Manual Transmission
Transmission Installation (cont'dl
Apply super high temp urea grease (P/N 08798-
9002) to the end of the slave cylinder rod. Install the
slave cylinder and the clutch line bracket. Take care
not to bend the clutch line.
8 x 1.25 mm22 N.m (2.2 kgf.m, 16 lbf ft)6x1.0mm9.8 N.m(1.0 kgf.m,7.2 tbt.ftla^_#._gEEa9En(P/N 08798-9002)
24. Installthe harness clip.
13-12
25. Installthe cable bracket (A) and cables (B).
BWZ[i:i'u'T!'*n'-'
lPlN 08798-9002)
Apply a light coat of super high temp urea grease(P/N 08798 - 9002)to the cable ends.
Connect the back-up light switch connector (A) and
the vehicle speed sensor {VSS)connector (B).
26.
t1

Component Location Index
UNDER.HOODFUSE/RELAY BOX
EPS CONTROL UNITEPS Control Unit Removal/lnstallation,page 17 -67
UNDER.DASH FUSE/RELAY BOX
-,'/.,....
'.,i,
X ]
DATA LINK CONNECTOR I16P)
TOROUE SENSOR
STEERING GEARBOXSteering Gearbox Removal, page 17-51Steering Gearbox Overhaul, page 17-55Steering Gearbox Installation, page 17-63
Removal/lnstallation,page l7-49
GAUGE ASSEMBLY
MOTOR
17-17