1998 ACURA INTEGRA check engine

Emission Control System
Check the vacuum when hot:1. Turn the ignition switch OFF.2. Block the rear wheels and setthe parking brake.3. Jack up the front of the vehi-cle and support it with safetystands.4- Start the engine. Hold theengine at 3,000 rpm with noload (in Park or neutral) untilthe radiator fan comes on, thenlet it idle.5. Check for vacuum at the vacuum hose with transmissionin gear (A/T in E position,M/T in 'l st gear) after startingrne engrne.6. Ouickly raise the engine speedto 3,000 rpm.
Evaporative Emission (EVAP) Controls (cont'd)
(From page 1'l 147)Check the EVAP purge controlsolenoid valve:1. Disconnect the 2P connectorfrom the EVAP purge controlsolenoid valve.2. Ouickly raise the engine speedto 3,000 rpm.
{To page 11 149)
tfl'I
Check lor a short in the wire{PCS line}l1. Turn the ignition switch OFF.2. Disconnect ECM connector A(32P).
3. Check for continuity betweenthe EVAP purge control solenoid valve 2P connector termi-nal No. 2 (818C5 engine: No. 1)and body ground.
Check for an open in the wire llclline):1. Turn the ignition switch OFF.2, Disconnect the 2P connectorfrom the EVAP purge controlsolenoid valve.3. Turn the ignition switch ON (ll).
4. At the harness side, measurevo ltage between the EVAPpurge controlsolenoid valve 2Pco n nector terminal No. 1( B 18C5 engine: No. 2) andbody ground.
EVAP PURGE CONTROI SOLENOIDVALVE 2P CONNECTOR IC114)B18C1, Cl8Bl engines: 818C5 engine:
PCSIRED/YEL}
femaleWire side offemaleterminals
YES
IGPl{YEL/BLKI
IGPlIYEL/BLKI
ECM CONNECTOR A {32PIPG1IBLKI
Insp€ct vacuum hose routing.lf OK, replace the EVAP purge
control solenoid valve.
neDair short in the wire betweenthe EVAP purge control solenoidvalve and the ECM lAl5).
Substitute a known-90od ECMand recheck. lI symptom/indica-tion goes away, replace the origi-nal ECM.
Repair open in the wirc betweenEVAP purge control solenoidvalve and PGM-FI main relav fuse.ls there battery voltage?
Check for an open in the wireIPCS linel:1. Turn the ignition switch OFF.2. Reconnect the 2P connector tothe EVAP purge control sole'noid valve.3. Turn the ignition switch ON (ll).
4. Measure voltage betweenECM connector terminals A15and A10.
Bopair open in the wiro betweenthe EVAP purgo control 3olanoidvalvo and the EcM {415).
11-144
(To page 11-149)

{From1 1-148)page
v
(From page 11 148)
Substitute a known-good ECMand retest. lf svmplom/indicationgoes away, replace the originalECM,
ECM CONNECTOR A {32PIPG1{8LKI
PCSIRED/YEL)femaletermrnars
Inspect vacuum hose routing.It OK, replace EVAP purge con-trol solenoid valve.
Check the EVAP purge controlsolenoid valve:1. Turn lhe ignition switch OFF.2, Connect the ECM connectorterminals 415 and 410 with a
3. Start the engine and check forvacuum at the vacuum hose.
ls there vacuum?
EVAP TWO WAY
Check the EVAP two way valvelSee EVAP two way valve test (seepage 11 '151).
Replace the EVAP two way valve.
Check the EVAP bypass solenoid
1. Disconnect the vacuum hosefrom the EVAP two way valveand connect a vacuum pumpto the hose.2. Turn the ignition switch ON (lli.
3. Apply vacuum to the hose.
Check lor a short in the wire{2WBS linel:Disconnect the 2P connector fromthe EVAP bypass solenoid valve.
Does valve hold vacuum?
Repair short in tho wire betweenEVAP bypass solonoid valve andrhe ECM {A28).
Does valve hold vacuum?
(cont'd)
{To page 11 150)
11-149

Clutch Pedal
Adjustment
NOTE:
a To check the clutch interlock switch and clutch
switch, see section 23.
a The clutch is self-adjusting to compensate Ior wear.
CAUTION: ll there is no clealance between the master
cylinder piston and push rod, the release bearing is held
against the diaphragm spring, which can result in clutch
slippage or other clutch problems.
1. Loosen locknut A, and back off the clutch switch
(or adjusting bolt) until it no longer touches the clutch
peoal.
2. Loosen locknut C. and turn the push rod in or out
to get the specified stroke (@) and height {O) at the
clutch Dedal.
3. Tighten locknut C.
4. Turn the clutch switch (or adjusting bolt) until it con-
tacts the clutch pedal.
ASSIST SPRING
@{
{PiN 08798-9002t
(STROKE at PEDAL): 130-140 mm (5.12-5.51 in){TOTAL CLUTCH PEDAI- FREE PLAYI: 12-21 mm (0.47-0.83 inl including tho p6dal play{CLUTCH PEDAL HEIGHT): 164 mm 16.46 inl to the tloor(CLUTCH PEDAL DISENGAGEMENT HEIGHTI: 83 mm {3.27 inl minimum to the floo.
t?
5.Turn the clutch switch (or adjusring bolt) in 3/4 to
1 full turn further.
Tighten locknut A.
Loosen locknut B on the clutch interlock switch.
Measure the clearance between the floor board and
clutch pedal with the clutch pedal tully depressed.
Release the clutch pedal 15-20 mm (O.59-O.79
in) from the fully depressed position and hold it there.
Adjust the position of the clutch interlock switch so
that the engine will stan with the clutch pedal in this
position.
Turn clutch interlock switch 3/4 to 1 full turn further.
Tighten locknut B.
9.
6.
7.
8.
10.
11.
LOCKNUT B9.8 N.m 11.0 kgt.m, 7 lbl.ft)
CLUTCH INTERLOCKswrTcHPUSH ROD
CLUTCH MASTER CYLINDER
CLUTCH SWITCH(or AOJUSTING BOLT)
LOCKNUT A9.8 N.m (1.0 kgf.m, 7 lbt.frl
l
{P/N 0879a-9002)
12-4
1- 10 mm (0.O4-O.39 inl

Flywheel, Flywheel Bearing
Inspection
t
',4
i
Replacement
1. Install the special tool.
MOUNTING BOLTS
Remove the flywheel mounting bolts in a crisscrosspattern in several steps as shown, then.emove the
Jlvwheel.
Bemove the flywheel bearing from the flywheel.
(cont'd)
FLYWHEEL
I
1.Inspect the ring gear teeth tor wear and damage.
Inspect the clutch disc mating surtace on the
flywheel for wear, cracks, and burning.
l\,reasure the flywheel runout using a dial indicator
through at least two full turns. Push agsinst the
Jlywheel each time you turn it to take up the crank-
shatt thrust washer clearance.
NOTE: The runout can ba measured with engine in-
stalled.
SiEndrrd (Ncw): 0.05 mm (0.002 inl max.
SerYicc Llmh: 0.15 mm (0.006 inl
DIAL INOICATOR
lf the runout is more than the service limit, reolace
the flywheel.
Turn the inner race of the flywheel bearing with your
tinger. The bearing should turn smoothly and quiet-
ly. Check that the bearing outer race tits tightly in
the flvwheel.
FLYWHEELBEARING
lf the race does not turn smoothly, quietly, or tit
tight in the flywheel, replace the flywheel bearing.
4.
FLYWHEEL
12-9

aintenance
Transmission Oil
NOTE: Check the transmission oil with the engine OFF
and the vehicle on level ground.
1. Remove the oil filler plug, then check the level and
condition of the oil.
OIL FILLER PLUG44 N.m {4.5 kgf.m,Proper Level33 tbf.ftl
The oil level must be up to the filler hole. lf it is
below the hole, add oil until it runs out, then rein-
stall the oil filler plug.
lf the transmission oil is dirty, remove the drainplug and drain the oil.
Reinstall the drain plug with a new washer, and
refillthe transmission oilto the proper tevet.
NOTE: The drain plug washer should be replaced at
every oil change.
Oil Capacity
2.2 | i.2.3 US.qr,1.9 lmp.qtl at oil ch.nge.
2.3 t l2.1US.qt,2.O lmp.qtl at ovorhaul.
Always use genuine Honda manual transmission
fluid (MTF). Using motor oil can causa€tiffer shift-
ing because it does not contain the proper addi-
Back-up Light Switch
Replacement
NOTE: To check the back-up light switch. see section 23.
1. Disconnect the connector, then remove the back-up
light switch connector from the connector clamp.
l.m {2.5 kgf.m, 18lbf.ft) Replace.
Remove the back-up light switch.
Install the new washer and the back-up light switch.
Check the transmission oil level.
!ves.
OIL FILLER PLUG
DRAIN PLUG39 N.m {4.0 kg{.m,29 rbf.ftlReplace.
5. Reinstall the oil filler plug with a new washer,
Replace.
EACK.UP LIGHT SWITCH25 N.m {2.5 kgf.m, 18 lbf.ft)
13.3

Reassembly
CAUTION:
. Press the 3rd/4th and the 5th synchro hubs on the
mainshaft without lubrication.
. When installing rhe 3rd/4th and the 5th synchro
hubs, support the mainshaft on the steel blocks. and
install synchro hubs using a press.
. Install the 3rd/4th and the 5th synchro hubs with a
maximum pressure of 19.6 kN {2,000 kgf, 14,/166 lbfl.
NOTE: Refer to page 13-21 for reassembly sequence.
'1. Support 2nd gear on steel blocks, then install the
3rd/4th synchro hub using the special tools and a
press, as shown.
NOTE: After installing, check the operation of the
3rd/4th synchro sleeve and hub
81881 engine:
DR|VER,40 mm l.D.07746 - 0030100AITACHMENT.35 mm LD.07746 - 00304003RD/4THSYNCHRO HUB
f
2ND GEAR
818C1 and B18C5 engines: Assemble the 3rd/4th syn-
chro hub and sleeve together before installing them on
the mainshaft.
3RD/4TH PRESS
SYNCHRO HUBORIVER, 40 mm LO.07746 - 0030100Closed endfaces up.
3RD/4THSYNCHROSLEEVE
2ND GEAR
2.
3.
Install the sth synchro hub using the special tools
ano a press as snown.
Install the angular ball bearing using the special
tools and a press as shown.
ATTACHMENT.35 mm LD.
DRIVER, 10 mm LD.
07?,16 - 0030100
J
a
\
13-27
{

I
Transmission Assembly
1.
2.
Install the dowel pins on the clutch housing.
Apply grease to the parts as shown, then install the
release fork and release bearing.
NOTE: Use only Super High Temp Urea Grease
(P/N 08798 - 9002).
3. Install the release fork boot.
lnstallation
22 tbl.lll
RELEASE FORK BOLT29 N.m {3.0 kgl.m,{P/N 08798 - 9002t
RELEASEBEAFING
RELEASEFORK
lPlN 08798 - 90021
Place the transmission on the transmission jack,
and raise it to the engine level.
Install the transmission mounting bolts and the rear
mount bracket bolts.SELF.LOCKING BOLT
12 x 1.25 mm64 N.m {6.5 kgf.m, {7 lbtftl
Replace.14 x 1.5 mm
RELEASEFORKBOOT
\i'l-r )i-
.+.i
13-46
6. Raise the transmission, then install the transmission
mounr,
NOTE: Torque the mounting bolt and nuts in the
sequence shown.
CAUTION: Check that the bushings are not twisted
or offset.
!) tz x t.zs mm64 N.m {6.5 kgt.m,47 tbl.ftl
7. Install the three upper transmission mounting
and the lower staner motor mountinq bolt.
bolts
10 x 1.25 mm44 N.m (4.5 kgt m.33 tblftl
(a 12 x 1.25 mm74 N.m {7.5 kgf m,54 tbf.ft)
'12x1.25mn
64 N.m {6.5 kst.m,47 lbf,ft)

Description
\J
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{
14-3
The automatic transmission is a combination of a 3-element torque converter and triple-shalt electronically controlled
automatic transmission which provides 4 speeds forward and 1 speed reverse. The entire unit is positioned in line with
the engrne.
Torque Converter, Gears, and Clutches
The torque converter consists of a pump, turbine, and stator, assembled in sigle unit. The torque converter is connected to
the engine crankshaft so they turn torether as a unit as the engine turns. Around the outside of the torque convener is a
ring gear which meshes with the starter pinion when the engine is being started. The entire torque converter assembly
serves as a flywheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts; the mainshaft. the countershaft, and the sub shaft. The mainshaft is in-line with
the engine crankshaft.
The mainshaft includes the 1st, and 2ndl4th clutches,and gear for 3rd, 2nd, 4th, reverse, and 1st. (3rd gear is integral with
the mainshaft, while reverse gear is integral with the 4th gear.)
The countershaft includes the 3rd clutch and gears for 3rd,2nd, 4th, reverse, 1st, and parking. Reverse and 4th gears can
be loched to the countershaft at its center,providing 4th gear or reverse, depending on which way the selector is moved.
The sub-shaft includes the 1st-hold clutch and gears fo 1st and 4th.
The gears on the mainshaft are in constant mesh with those on the countersahft and sub-shaft.When certain combinations
of gears in the transmission are engaged by clutches. power in transmitted from the mainshaft to the countershaft via the
sub-shaft to orovude oil, lo'1. E, E. and E.
Electronic Control
The electronic control svstem consists of the Transmission Control Module (TCM), sensors, and four solenoid valves.
Shilting and lock-up are electronically controlled for comfortable driving under all conditions.
The TCM is located below the dashboard, behind the lelt side kick panel on the driver's side.
Hydraulic Control
The valve bodies include the main valve body, the secondary valve body, the regulator valve body, the serbvo body, and
the lock-up valve body, through the respective separator plates, They are bolted to the torque converter housing,
The main valve body contains the manual valve, the 1-2 shift valve, the 2-3 shitt valve, the Clutch Pressure Control
lCPC) valve, the 4th exhaust valve, the reliel valve, and the ATF pump gears.
The secondary valve body contains the 4-3 kick-down valve, the 3-2 kick-down valve, the 2-3 orifice control valve, the
3-4 shift valve, the orilice control valve, the modulator valve, and the servo control valve.
The regulator valve body contains the pressure regulator valve, the lock-up control valve, the torque converter check
valve, and the cooler check valve.
The servo body contains the servo valve, which is integrated with shift fork shaft, the throttle valve B, and the accumula-
tors.
The lock-up valve body contains the lock-up shift valve and the lock-up timing B valve, and is bolted to the regulator valve
ooqy.
Fluid from the regulator passes through the manual valve to the various control valves.
Shift Control Mechanism
Input to the TCM from various sensors located throughout the car determines which shift control solenoid valve should
be activated. Activating a shitt control solenoid valve changes modulator pressure, causing a shift valve to move. This
pressurizes a line to one ol the clutches, engaging that clutch and its corresponding gear.
Lock-uD Mechanism
In @ position, in 2nd, 3rd and 4th, and @ position in 3rd, pressurized fluid can be drained lrom the back oI the tor-
que converter through a fluid passage, causing the lock-up piston to be held against the torque converter cover. As this
takes place, the mainshaft rotates at the same speed as the engine crankshaft. Together with hydraulic control, the TCM
optimizes the timing of the lock-up mechanism.
The lock-up valves controlthe 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)