1994 HONDA INTEGRA eld

PGM-FI System
11-72
While measuring voltage betweenDlO 1+) terminal and 426 l-)terminal, turn the headlighr switchto the second position (a) {low).
Does the voltage drop whenthe headlights are turned on?
Subrtitute . known-good ECMand rochock. lt 3ymptom/indic€-tion goos away, ioplaco th6 origi-nal ECM.
Electrical Load Detector (ELD) (cont'd)
425 t-t D10 l+), Doos Volrago Orop? ----------------J

Emission Control System
Three Way Catalytic Converter (TWC) (cont'dl
Inspection
lf sxcessive oxhaust system back-pressure is suspected. remove the TWC trom the car and make a visual check for plug-
ging, melting or cracking of ths catalyst. Replace the TWC if any of the visible area is damaged or plugged.
81881 ongino:
TI{REE WAYCATALYTICCONVERTER {TWCIRemovsl/installation, see section 9
Inspect housing for cracks orother damage.Inspect element tor cloggingby looking through the inside.
HEAT SHIELD
11-132
T SHIELO

818Cl engine:
HEAT SHIELO
r{
THREE WAYCATALYTICCOI{VEBTEB {TWCIR€moval/installation. sso s€ction 9Inspoct housing tor cracks orothor damage.Inspect elemont for cloggingby looking through the inside.
HEAT SHIELD
11-133

Adjustment
NOTE:
a To check the clutch interlock switch and clutch
switch, see seclion 23.
a The clutch is selt-adjusting to compensate for wear.
CAUTION: It there is no clearanco between the mastel
cylinder piston and push lod. the releaso boaring is held
againsl the diaphragm spring, which can result in clutch
slippage 01 othel clutch problems.
Loosen locknut A, and back otf the clutch switch
{or adjusting bolt) until it no longer touches the clutch
pedal.
Loosen locknut C, and turn the push rod in or out
to get the specified stroke (@) and height (O) at the
clutch pedal.
Tighten locknut C.
Turn the clutch switch (or adjusting bolt) until it con-
tacts the clutch pedal.
Turn the clutch switch (or adjusting bolt) in 3/4 to
1 full turn further.
Tighten locknur A.
7. Loosen locknut B and the clutch interlock switch.
8. Measure the clearance between the tloor board and
clutch pedal with the clutch pedal tully depressed.
9. Release the clutch pedal 15-20 mm {O.59-O.79
in) from the fully depressed position and hold it there.
Adiust the position of the clutch interlock switch so
that the engine will start with the clutch pedal in this
oosition.
1 0. Turn clutch interlock switch 3/4 to 1 tull turn funher.
11. Tighten locknut B.
LOCKNUT B9.8 N.m (1.0 kgf.m, 7 lbf.ftl
CLUTCH INTERLOCKswtrcH
6.
1.
2.
ASSIST SPRING
-6ll
LOCKNUT Cl3 N.m l'l.3 kgf.m, 9
CLUTCH SWITCH{or AOJUSTING BOLTI
LOCKNUT A9.8 {N.ml (1.0 kgl.m, 7 lbt.ftl
(STROKE at PEDALI: 130-140 mm 15.12-5.51 in){TOTAL CLUTCH PEDAL FREE PLAY): 12-21 mm 10.47-0.83 inl including tho p.dal play I -lO mm 10.04-0.39 inl{CLUTCH PEDAL HEIGHTI: 164 mm (6.46 in} to tho lloot{CLUTCH PEDAL DISENGAGEMENT HEIGHTI: 83 mm 13.27 inl minimum to tho lloo.
PUSH ROD
CLUTCH MASTER CYLINDER
Clutch Pedalctutch Pedat I
[-],ll'"-"" f
| :;i:'":fff*tr#:?iff:".,*::,::". | .#::J:::
sb''''""
| |
| "orr,O", It there is no clearanco between the master | ,. aoo""n locknut B and the clutch intertoct switcl. | |cylinder piston and push lod. the releaso boaring is held | | Iagainst the diaphragm spring, which can result in clutch | 8. Measure tne clearance between the floor board and I Islippage 01 othel clutch problems.
I
clutch pedal with the clutch pedal tully deeressed.
I I1. Loosen locknut A, and back otf the clutch switch | 9. Release the clutch pedal 15-2O mm (O.59-O.79 I I
{or adiusting boltl until it no longer touches the clutch I int trom ttre fully depressed position and hold it there. I I
, ::":"" rocknut c, and rurn the push rod in or out | iliiiliffi:l1l:J"'1"-:H"l:tJ:i"i#fT: I I
. il*:*j':"'-(@)andheisht(olatthe
|
,:.;:,nterrockswitch3/4torrurrturnturtner.
I tf
,
::
***r**''
.,".,u"**;
|
'-"'"'';*1,,0*.,.-,.,*,
I I

Removo tho clutch pip€ bracket and th€ slave cylin-
oer.
NOTE: Do not operate the clutch pedal once th€
slavg cvlinder has been r€moved.
R€move the three uppor transmission mounting
bolts 8nd lower staner motor mounting bolt.
STARTEBMOTOBMOUNNNGBOLT
MOUNNNGBOLTS
10. Remove the engine splash shield.
11. Disconnect the heated oxygen sensor (HO2S) con-
nector, lhsn rsmove the exhaust pipe A, and the
three way catalytic converter (B18Cl Engine).
HO2Sco NEctoRSELF.LOCK IIUTRopl.ce.
EXHAUSTPIPE A
THBEE WAYCATALYTICCONVEEIER1818C1 engin6)
SELF.LOCK NUTReplace.
13-5

8, Instsll the right tront mounvbracket.
SELF.LOCKING BOLTReplac€.12 x 1.25 mm
10 x 1,25 mmil a N.m (i4.5 kgf..n,33 tbtftl
9. Installthe clutch cover.
6r1.0mm12 N.m 11.2 kgtm,9 rbf.ftl
12 x 1.25 mm57 N.m ls.E kgf.m,a:I lbl.trll818Bl .ngin.l
8 x 1.25 mm2il N'm 12.4 kg{.m,17 tbffrt
RIGHT
10.lnstall the tront
stiff€nsrs.
(818C1 engine) and rear engine
8 x 1.25
12 x 1.25 mm5t N.tn {5.842 tbt ftt
24 N.m l2.a kgf.]n,17 tbtftl
8 x 1.25 mm
22 N.rn 12.2 kgl-m.16 tbtftl
FROifT ENGINE 2r N'm (2.4 kg['m,
SnFFENERS 17lbf.ttl
lBl8Cl lngin.l
11. Installthe change rod, the spring pin, and the clip.
NOTE:
12 x 1.25 ftm5? N.rn l5.E kg[.m,42 tbl.ft)
sHtFT ROO aOOt
2MqlL#--7
HOt.C(cont'dl
. Install the clip and the spring pin on the
joint as shown.
. Turn the shift rod boot so the hole is
down as shown.
. Make sure the shift rod boot is installed
cnange roo,
12. Install the change extension.
13. Installthe heat shield (818C1 engine).
8 x 1.25 mm
change
facing
on the
CHANGE ROD
CHANGEEXTENSION
5xl.0mm9.8 N.m 11.0 kgt'm,7 tbf.ftt
/^ "-*
i@
CLIP
. SPRING PINl3- Replace.
I e -- nrr,l
ll'--PuNcH
HEAT SHIELD(B18Cl .nginol
13-47

Transmission Assembly
14. Install the intermediate shaft and the driveshafts(see section 16)-
NOTE: Replace the set rings with new ones.
Installation (cont'd)
-Sl
SET RINGReplace.
INTERMEDIATESHAFT
Replace.10 x 1.25 mm38 N.m (3.9 kgt m,28 tbtft)
15. Install the ball joints onto the lower arm (see sec-
tion 18).
16. Install the right damper fork (see section 18).
10 x 1.25 mm43 N.m {4.o ksf.m.32 lbf.ft)
RIGHTDAMPERFOBK
SELF.LOCKING NUTReplace.12 x 1.25 mm64 N.m {6.5 kgf.m,47 tbtft)
tLOWER ARM
:\
COTTER PIN
CASTLE NUT12 x 1.25 mm49 - 59 N.m 15.0 - 6.0 kgf m. Reptace.36 - 43 tbf.frl
13-44
DNIVESHAFTS
::.t
L
17. lnstall the exhaust pipe A, and the three way cat-
alytic converter (Bl8C'1 engine), and connect theheated oxygen sensor (HO2S) connector.
SELF-LOCKING NUTHO2SCONNECTORReplace.10 x 1.25 mm33 N.m (3.4 kgt.m,2s tbtftt
GASKETReplace.SELF.LOCKING NUTReplace.8 x 1.25 mm
SELF.LOCKING NUTReplace.THREE WAYCATALYTICCONVERTER1818C'l enginel
16 N'm 11.6 kgt m, 10 x 1 25 mm
l2tbt.ftl 54 N.m 15.5 kgt m,iro lbf.ftl
18. Install the engine splash shield.
GASKET

The Automatic Transmission is a combination of a 3-e,ement torque convefter and triple-shaft electfonically controlled
automatic transmission which provides 4 speeds forward and 1 speed reverse. The entire unit is positioned in line with
the engine.
Torque Converter, Gears and Clutches
The torque converter consists of a pump, turbine and stator assembly in a single unit, The torque converter is connected
to the engine crankshaft so they turn together as a unit as the engine turns. Around the outside of the torque converter
is a ring gear which meshes with the starter pinion when the engine is being staned. The entire torque converter assem-
bly serves as a flywheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts, the mainshaft. countershaft and sub-shaft. The mainshatt is in line with the
engine crankshaft.
The mainshaft includes the clutches for 1 st, and 2ndl4th, and gears for 3rd. 2nd, 4th, reverse and l st (3rd gear is in-
tegral with the mainshaft, while reverse gear is integral with the 4th gear).
The countershaft includes the 3rd clutch and gears Ior 3rd, 2nd,4th, reverse, lst and parking. Reverse and 4th gears
can be locked to the countershaft at its center, providing 4th gear or reverse, depending on which way the selector is moved.
The sub-shaft includes the lst-hold clutch and gears for 1st and 4th
The gears on the mainshait are in constant mesh with those on the countershaft and sub-shaft. When certain combina-
tions of gears in the transmission are engaged by the clutches, power is transmitted from the mainshaft to the counter-
shaft via the sub-shatt to provide @, E, tr. tr and @ position.
Electronic Control
The electronic control system consists of the Transmission Control Module {TCM), sensors, and 4 solenoid valves. Shift-
ing and lock-up are electronically controlled for comfortable driving under all conditions.
The TCM is located below the dashboard, behind the left side kick panel on the driver's side.
Hydraulic Control
The valve bodies include the main valve body, secondary valve body, regulator valve body. servo body, and lock-up valve
body throuqh the respective separator plates.
They are bolted on the torque converter housing.
The main valve body contains the manual valve, 1-2 shift valve, 2-3 shift valve, Clutch Pressure Cont.ol (CPC) valve,
4th exhaust valve, relief valve, and oil pump gears.
The secondary valve body contains the 4-3 kick-down valve,3-2 kick-down valve,2-3 orifice cont.ol valve, 3-4 shitt
valve, orifice control valve. modulator valve, and servo control valve
The regulator valve body contains the pressure regulator valve. lock-up control valve, torque converter check valve, and
cooler check valve.
The servo bodv contains the servo valve which is integrated with the reverse shift fork, throttle valve B, and accumulators.
The lock-ug valve bodv contains the lock-up shift valve and lock-up timing B valve. and is bolted on the secondary valve
body.
Fluid from the regulator passes through the manual valve to the various control valves.
Shitt Control Mochanism
Input to the TCM i.om various sensors located throughout the car determines which shift control solenoid valve should
be activated.
Activating a shift control solenoid valve changes modulator pressure, causing a shift valve to move. This pressurizes
a line to one of the clutches. engaging that clutch and its corresponding gear.
Lock-up Mechanism
In @ position. in 2nd, 3rd and 4th, and E position in 3rd, pressurized tluid can be drained from the back of the tor-
que converter through an oil passage, causing the lock-up piston to be held against the torque converter cover. As this
takes Dlace, the mainshaft rotates at the same speed as the engine crankshatt. Together with hydraulic control, the TCM
optimizes the timing ol the lock-up mechanism.
The lock-up valves control the range of lock-up according to lock-up control solenoid valves A and B, and throttle valve B
When lock-up control solenoid valves A and B activate, modulator pressure changes. Lock-up control solenoid valves
A and B are mounted on the torque converter housing, and are controlled by the TCM.
(cont'd)
14-3