1994 HONDA INTEGRA Radiator

lntake Air System
Throttle Body
Description
The throttle body is ot the single-barrel side-draft 1ype.
The lower portion of the throttle valve is heated by en-gine coolant from the cylinder head. The idle adjusting
screw which increases/dec.eases bvDass air and the
Evaporative Emission (EVAP) Control Canister port are
located on the top of the throttle body.
IOLE AOJUSTING
THROTTLESTOP SCREW(Non-adiustsb16l
11-120
Insoection
CAUTION: Do not adiust the thlottle stop screw. lt ispreset at the lactory.
1. Start the engine. Hold the engine at 3,OOO rpm with
no load (A/T in S or E position, M/T in neutral) until
the radiator fan comes on, then let it idle.
2. Disconnect the vacuum hose (to the EVAP control
canister) from the top of the throttle body; connect
a vacuum, gauge to the throttle body.
VACUUM PUMPGAUGEA973X-O41-XXXXX
5.
3. Allow the engine to idle and check that the gauge
indicates no vacuum.
a li there is vacuum, check the throttle cable (see
page 1 1-'l 18, 119).
Check that vacuum is indicated on the gauge when
the throttle is opened slightly from idle.
a lf the gauge indicates no vacuum, check the throt-
tle body port. lf the throttle body port is clogged.
clean it with carburetor cleaner.
Stop the engine and check that the throttle cable
operates smoothly without binding or sticking.
a lf there are any abnormalities in the above steps,
check for:
- Excessive wear or Dlav in the throttle valve shaft.
Sticky or binding throttle lever at full close po-
srtron.
Clearance between throttle stop screw and throt-
tle lever at tull close Dosition.

Emission Control System
SystemDescription
The emission control system includes a Three Way Cata-
lytic Convener (TWC), Positive Crankcase Ventilation(PCV) system and Evaporstive Emission {EVAP) Contfol
syst€m. The emission control system is designed to meet
federsl and stats emission standards.
Tailpipe Emission
Inspection
f!fifil oo nor amoro ou]rng rnr! Foacqurr. ^!op
any open flame away from yout wotk atca.
Start the engine. Hold the engine at 3,OOO rpm with
no load (A/T in @ or@ position, M/T in neutral) until
the radiator fan comes on, then let it idle,
Connect a tachometer.
Check and adiust the idle speed, if necessary (sss
page 1 1-95).
Warm up and calibrate the CO meter according to
the meter manutacturer's inst.uctions.
Check idle CO with the headlights, hester blower,
rear window defogger, cooling fan, and air condition-
er otf.
NOTE: (Canada) Pull the parking br8ke lever up.
Stan the engine, then check that the headlights are
off.
CO meter should indicate 0.1 maximum.
11-130

(From page 1 1-137)
lTo page 1 1-'l39)
Start the engine. Hold the engineat 3,OOO rom with no load lA/T in
E orE position, M/T in neutrsl)unlil lhe radiator tan comes on.then let it idle.
Check lor vacuum at # 7 vacuumhose alter starting the engine.
Oisconnect the 2P connoctor fromthe EVAP purge control solenoid
Intpoct vacuum hoaarcuting.It OK, reolrco tr|c EVAP
Purge contlol lolanoid
ls there manifold vacuum?
Inrpoct for a short i|t RED wire bo-lwoen ECM {A2Ol and th6 con-noclor.ll wiro la OK, substituto a known-good ECM 6nd .echock. lf symp-tom goes away, loplace tho origi-nal ECM.
Ropair opon in YEL/BLKwirc b.tw..n EVAPpurgo control rolanoidvrlvo and th. xiM-Flmlin r6lay.
ls there baftery voltage?
Inspoct RED wirc for 6n opon totrody g.ound botween ECM lA20)and th6 conn6ctor.It wir. b OK, substiluto a known-good ECM and rochock, It sym-ptom 9o6s away, roplaco thooriginal ECM,
Emission Gontrol System
Evaporative Emission (EVAP) Gontrols (cont'd)
{From page 11-137}
11-138

Transmission Assembly
Removal
Mskc aurs iack! and safoty Etands aro placod proper-
ly lsl8 saqtion 1|.
Apply parking brake tnd block rear whccl! to car
will not roll ofl stand3 and f.ll on you while wotking
undrr it.
CAUTION: Use tondcr coyar3. to avoid drmlging
plintsd 3qrfaca3,
Disconn€ct the negative {-) cable from the battery,
then the positive (+) cable.
Drain the transmission oil, then reinstall the drain
plug with a new washer (see page 13-3),
Remove the intake air duct and the air cleaner hous-
ing assembly,
AIR CITANERHOUSING
13-4
4. Disconnect the back-up light switch connoctor and
the transmission ground wir€.
5, Remove the lower radiator hose clamp trom ths
transmission hanger B.
BACK.UP LGHTsuTcH cot{t{EcToR
lnaNsMttistoNGROUND WIRE
tnaNsi ssloNHANGEB B
o.
1.
R€move the wire harness clamPs.
Disconnect the stsrt€r motor cables and the vahicla
soeed sensor (VSS) connector.
VSS OONNECTOR

'19.Install the slave cylinder, then install the clutch pipe
bracket.
NOTE: Use only Super High Temp Urea Grease
(P/N 08798 - 9002).
CLUTCH PIPE6x1.0mm9.8 N.m {1.0 kgf.m, 7 lbf ft)
8 x 1.25 mm22 N-m 12.2 kgl.tr't,16 rbf.ftl
20.
21.
tPlN 08798 - 90021
VSS CONNECTOR
Connect the vehicle speed sensor (VSS) conneclor
and the starter motor cables.
Install the wire harness clamPs.
6x1.0mm9.8 N.m (1.0 kgt m,7 lbf ftl
WIREHARNESSCLAMPS
8 x 1.25 mm8.8 N.m 10.9 kgf.m,6.s tbf.ft)
STARTERMOTORCABLES
22, lnstall the lower radiator hose clamp on the trans-
mission hang€r B.
23. Connect the transmission ground wire and the
back-up light switch connector.
16 tbf.fttBACK.UP LIGI{TSWITCH CONNECTOR
GROUND WIRE HANGER B
Install the air cleaner housing assembly and the air24.
intake duct.
AIR CLEANERHOUSINGASSEMALY
6x1.0mm9.8 N.m 11.0 kgt'm,7 lbtftl
AIR INTAKE DUCT
Refill the transmission with oil (see page 13-3).
Connect the positive (+) cable first, then connect the
negative ( - ) cable to the battery.
Check the clutch operation.
Shift the transmission. and check for smooth opera-
tron.
29. Check the front wheel alignment (see section 18).
9\
\<
27.
28.
13-49

S.fdl.enorl! L&l indicdor lighlblinks fourtoon tlmoa.
ls the Malfunction IndicatorLamp (MlL) onl
Stan the ongine and warm it upto normal operating temperature{th€ radiator lan com€s on).
Shift to E position,
Turn rhe ignition switch OFF.
Possible Cause
. Sh"rt ". "e"" i" FAS |YEU ,"rirt. Fsulty ECM.
Connect the Test Harness be-tween the TCM and connociors{see page 14-491.
Turn the ignition switch ON andwsit for at least two seconds.
o oooooo ooo ooo l.tto.oodooo l:,gEoo.ottl o ooooo oooo o
o oooo oooooooo l:OOOO OO 60 l.,OO{tO.O6,'l o oooooooooo
Measure lhe voltage betwgan thso16l+ ) and A25 or A26(- | tor-mrnals.
lcont'd)
Ropair tho PGM-FI Syrtom lloo..ctlon 111.
Chock for looro TCM connoctora.lf noco$ary, subatituta a known-good TCM and .ech€ck.ls thoro approx. 5 V?
Turn the ignition switch OFF.
Dkconnect the Test Harness fromthe TcM.Leave connect€d to car harness.
Turn the ignition switch ON.
fo page 14-74
14-73

Heater Unit
Replacement
CAUTION:
a All SRS electrical witing hame$os are covoed wlth
yollow insulation.
a Before disconnecting any patt of tho SRS wito har-
neas, connect tha shott connoctol(s|.
a Roplaco th€ enlire sffacted SRS harnosr a$smbly if
it has an opon cilcult or dsmaged wiring.
NOTE: The original radio h8s a coded theft protection
circuit. Be sure to get the customer's code number betors
- disconnecting the bafterY.
- removing the No. 32 (7.5 A) fuse from th€ under-
hood tuse/relav box.- removing the radio
After service. teconnect power to the radio and turn it
on, when the word "CODE" is displayed, enter the cus-
tomer's 5-digit code to restore radio operation.
1. When the engine is cool, dtain the engine coolant
from the radiator (see section 1O).
@@ oo not lomove tho radiator cap whan
the ongine is hol; tha ongino coolant is undot
pressure and could a€voralY tcald you.
2. Snap open the clamp and disconnect the heater
valve cable from the heater valve arm.
HEATER VALVE CABLE
21-22
CLAMFS
3. Disconnect the heater hoses from the heater unit'
CAUTIOII: Engino coobnt will damago paint. orick-
ly dnse any rpilled engine coolant from paintod
surfac63.
NOTE: Engine coolant will tun out when the hoses
are disconnected, drain it into a clean drip pan'
HEATER HOSES
Remove the mounting nut from the heater unit.
NOTE: When removing the mounting nut, take care
not to damage or bend the fuel pipes, brake pipes,
etc.
8 r 1,25 rn|n22 N.m 12.2 kgt.m, tO lbf'ftl
4.

Wiring/Connector Locations
A/C DIODECONNECTOR(Loc.ted .bovo tho.ight kick p.n.ll
RADIA'OR FAN RELAY{Localed in the undel-hood fu3o/reltY box)
A/CTHERMOSTAT CONDENSERFANCONNECTOR CONNECTOR
MAIN WIRE HARNESS
A/C WIRE HARNESSCONNECTOR
RADIATOR FANCONNECTOR
A/C WIRE HARNESS
COMPRESSOR CLUTCHCONNECTORA/C PR€SSURE SWTTCHCONNECTOR
22-4