2003 HONDA CIVIC Intake manifold

IAT Sensor Replacement
1, Dlsconnect the IAT sensor 2P connector.
2. Remove the clip (A) and the IAT sensor (B).
3. lnstallthe sensor in the reverse order of removal.
Knock Sensor Replacement
1. Remove the intake manifold bracket (A).
2.
3.
4.
24Nm(2.4 kgt.m, 17 lbt.ftl
Disconnect the knock sensor 1P connector.
Remove the knock sensor (B).
Installthe sensor in the reverse order of removal.
11-115

PCV Valve Inspection and Test
2.
1. Check the PCV valve (A), hoses {B), and
connections for leaks or restrictions.
At idle, make sure there is a clicking sound from the
PCV valve when the hose between the PCV valve
and intake manifold is lightly pinched {A)with your
fingers or pliers.
lf there is no clicking sound, check the PCV valve
grommet for cracks or damage. lf the grommet is
OK. reDlace the PCV valve and recheck.
PCV Valve Replacement
'LDisconnect the PCV hose.
Remove the PCV valve (A).
3. Install
with a
(4.5 kgf.m,33 lbf.ft)
the parts in the reverse order of removal
new gasket (B).
11-169

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

28. Connect the transmission ground cable (A).
8 x 1.25 mm
B
22 N.m (2.2 kgf.m, 16lbf.ft)
[---.-.---e
e
6x1,0mm9.8 N.m{1.0 kgl m. 7 lbf ftl
29.
30.
8x125mm22Nm12.2 kgt m, 16 lbf ft)
lnstall the battery tray (B).
Installthe intake air duct (see step 36 on page 5-14).
Installthe air cleaner housing (see step 39 on page
5-15).
Installthe intake manifold cover (see step 41 on
page 5-15).
Install the battery. Connectthe positive (+) cable
first, then the negative (-)cable to the battery.
Reflllthe transmission fluid (see page 13-3).
Test-drive the vehicle.
Check the clutch operation.
Check the front wheel alignment (see page 18-4).
Enter the anti-theft code for the radio, then enter
the customer's radio station presets.
Do the engine control module (ECM) idle learn
procedure (see page 11-139).
32.
33.
34.
35.
36.
31.
38.
39.
13-13

Connectors and Harnesses
Engine Wire Harness
Camshaft position (CMP) sensorLllr sensorEC[,4 connector AECI/l connector BEngine coolant temperature (ECT)
sensorEngine oil pressure switchEVAP canister purge valveldle air control (lAC)valve
lgnition coil No. llgnition coil No. 2lgnition coil No. 3lgnition coil No. 4Iniector No. 1Inlector No.2Iniector No.3Iniector No. 4Intake air temperature {lAT) sensor
TDC sensorThrottle position (TP) sensorVehicle speed sensor (VSSI
VTC oil control solenoid valveVTEC oil pressure switchVTEC solenoid valvec 101
c102
233
242
Transmission housingLeft side of engineRight side ofengineUnder glove boxUnder glove boxLeft side of engine
Bight side oI engineLeft side of intake manifoldLeft side of intake manifoldMiddle of engine compartmentMiddle of engine compartmentMiddle of engine compartmentMiddle of engine compartmentMiddle of engine compartmentMiddle of engine compartmentMiddle of engine compartmentMiddle of engine companment
28
1845672524201912
811102729303
22
12333332222233
322220
Left side of intake manifoldLeft side of engineLeft side of intake manifoldTransmission housingRight side o{ engineRight side of engineRight side of engineUnder right side of dash
Front of engine companment
Front of engine compartment
ECM wire harness {see page22-321Starter subharness (see page22-15)Starter subharness (see page22 151
Connector to Harness Index (cont'dl
22-16