1997 HONDA CIVIC Clutch pressure Control

Standards and ServiceLimits
Section '14Automatic Transmission (cont'd)
UO
MEASUREMENTSTANDARD {NEW}
Wire Dia.o.D.Free LongthNo. ol CoilsHegulator valve spring ARegulato. valve spring BStator reaction springModulator valve springTorque convener check valve springCooler relief valve springRelief valve spring2nd oritice control valve spring1-2 shift valve spring2-3 sh ift valve spring3 4 shift valve spring'l st accumulator spring4th accumulator spring B4th accumulator spring A2nd accumulator spring A3rd accumulator spring A2nd accumulator spring B3rd acc!mulator spring B2nd accumulator spring CLock up shift valve springLock up timing valve springLock-up control valve spring3 4 ofifice control valve springServo control valve springCPC valve springCPB valve spring4th exhaust valve spring
Springs1.8 {0.071)1.8 {0.071)4.5 \O.117)1.4 (0.055)
1.0 10.039)1.0 (0.039)
1.1 (0.043)
0.7 (0.028)
0.9 (0.035)
0.9 (0.035)
0.9 (0.035)
2.1 (0.083)
2.3 (0.091)
2.610.102)2.4 (0.094)
2.8 (0.'110)
1.6 (0.063)
2.2 (0.087)
2.2 t0.041)0.9 (0.035)
0.9 (0.035)
0.7 (0.028)
0.7 (0.028)
1.0 (0.039)
0.6 (0.024)
0.9 {0.035)0.9 (0.035)
14.7 (0.584)
9.6 (0.381)
3s.4 (1.407)
9.4 (0.374)8.4 (0.334)
8.4 (0.334)
8.6 {0.342)6.6 (0.262)
7.6 (0.302)
7.6 (0.302)
7.6 (0.302)16.0 (0.636)10.2lo.402l17.0 {0.676)29.0 (1.152)
17.5 (0.6951
9.0 (0.358)
31.0 (1.220)
14.5 {0.576)7.6 (0.302)
8.1 (0.319)
6.610.262)6.6 (0.262)
8.1 (0.322)
5.6 (0.2231
8.1 10.322)6.1 10.242)
87.8 (3.457)
44.0 i.732l'30.3 (1.193)
35.0 {1.378)33.8 (1.331)
33.8 (1.331)
37.1 (1.461)
34.8 (1.370)
41.3 (1.626)
57.0 (2.2441
51 .0 \2.244189.1 {3.508)51.6 (2.031)
87.0 (3.425)
39.011.535)89.3 (3.516)
20.7 (0.815)
35.1 11.382)68.012.671173.7 12.902)80.7 (3.177)38.0 {1.496)37.5 fi.476)52.1 (2.051)
12.2 (0.480)
47.2 {1.858}36.4 {1.433)
16.511.01.910.94.24.213.422.016.326.826.a16.213.814.22.915.66.12.413.932.045.814.124.620.4
18.319.5
CVTSection 14
3-14
MEASUREMENTSTANDARD INEWISERVICE LIMITTransmissionfluidCapacity f {US qt, lmp. qt)6.4 {6.8, 5.6) for overhaul3.9 (4.1, 3.4) for fluid change
Hydraulicpressure
1kgflcm,, psi)
Forward clutch pressure at 1,500 rpm in E position1.4 - 1.15 114.3 - 11.A,203 - 2531Reverse brake pressure at 1,500 rpm in E position1.4 - 1.75 (14.3 11.8,203 2531Dr;ve pulley pressure at 1,500 rpm in E posrtrono.2 -0.7 12.0 -7.1,28- 1011Driven pulley pressure at 1,500 rpm in N positionr.5 - 2.3 115.3 - 23.5, 218 - 334)Lubrication pressure at 3,000 rpm in E posrtronAbove 0.212,30)Stall speed fpm (Check with vehicle on level ground)
E position
E, E, El positions2,5003,0002,350 - 2,6502,800 - 3, r00ClutchClutch initial clearance Forward clutchStart clutchReverse brakeClutch return spring free length Forward clutchStart clutchReverse brakeClutch disc thickness Forward clutchStart clutchReverse brakeClutch plate thickness Forward clutchSta rt clutchReverse brake
0.6 - 0.8 (0.024 - 0.031)0.5 - 0.7 (0.020 0.028)0.45 - 0.75 (0.018 - 0.030)30.5 {1.201)40.9 (1.610)
29.4 (1.157)
1.88 - 2.00 (0.074- 0.079)1.88 2.00 (0.074 - 0.079)1.94 - 2.06 (0.076 - 0.081)1.95 - 2.05 (0.077 -0.081)
2.25 2.35 (0.089 - 0.093)1.90 - 2.00 (0.075 0.079)
,*x.ar}38.9 (1.531)
27.411.019l'Until grooves worn out
Until grooves worn outDiscolorationDiscolorationDiscoloration
L.

Unit of length: mm lin)
STANDARD {NEW) SERVICE LIMITMEASUREMENT
Differential
Dtri"*"t"|p'.b"gear
S"t rrg-t" b""il"s
Pinion shaft contact area LD.
Carrier-to pinion clearanceDrive shaft contact area l.D.Carrier to driveshaft clearance
BacklashLD.Pinion gear to-pinion shafl clearance
)uter race clearance
18.010 18.028'0.7091 - 0.7098)
0.023 0.057 (0.0009 - 0.0022) 0.1 (0 004)
26.025 - 26.045 (.0246 1 0254\0.045 0.086 (0.0018 - 0.0034) 0.12(0.005)
0 05 - 0.15 i0 002 0.006)18 042 18.066 {0.7103 0.7" l3)
0.055 - 0.095 (0.0022 - 0.0037) 0.15 {0.006)
0 0.15 (0 - 0.006) Adjlrst
MEASUBEMENT Wire DiaO.D. Free Length I No. of Coils
SpringsPH regulator valve spring 1 2 (0 047)
PH control valve spring 1 7 {0.067)PL regulator valve spring 0 9 (0.035)
PH'PL control valve spring 1 0 (0 039)
crutlh reduc'ns vdrve spnns ] :19 9]:lLLbrication valve spring I b (u ubJr
Shitt valve spring 1 4 (0.055)
Shift control valve spring 1 0 (0.039)
Stan clutch control valve spring 0.4 (0 016)
Pitot regulator valve spring 0.6 (0 024)
Start clutch valve accumulator spring 1 2 \0 O47)
Reverse control valve spring 1 2 (0.047)
Shift inhibitor valve spring 1 3 (0 051)
9.0 {0.354)13.4 (0.528)
1.2lO.2A3\10.0 (0.394)
16.8 (0.661)
13.4 (0.528)
8.2 (0.323)
1 .4 t0.29114.1 (0.161)
5.7 t0.224)8.3 {0.327)9.4 (0.370)
13.2 (0.520)
26.7 (1.051)
39.4 (1.551)
14.6 (0.575)
31.4 (1.236)
44.4 \1.14al51.6 (2.031)
34.1 (1.343)
19.3 (0.760)
12.1 (0.476)
9.5 (0.374)
29.8 (1.173)
31.4 (1.236)
48.3 (1.902)
r0.08.11.28.68.0
13.01.56.85.012.311.010.6
Section 14
SteeringSection 17
M/S: [,4anual steering, P/Sl Power steering*: When using a ne; bett, adjust dellection or tension to new values. Run the engine for 5 minutes then turn it off-
Readjust the deflection or tension to used belt values.
cw
MEASUREMENTSTANDARD {NEWI
Steering wheelPlay at steering wheel circumferenceStarting load at steering wheelcircumferenceN (ksf, lbf)Manual steeringPower steering Engine running
0 - 10 (0 0.4)
15 (1.5,3.3)
29 (3.0,6.6)
GearboxAngle of rack guide screw loosened M/S
from locked position P/S
Preload at pinion gear shaft N m (kglcm, lbfin) M/S
20!5"20'Max0.5 - 1.7 (5 - 17,4.3 - 14.8i
0.6 1.2 (6 - 12, 5.20 - 10.42)
Pump pressure with valve closed(oil temp./speed: 40'C (105"F) min./idleDo not run for more than 5 seconds).kPa (kgtcm?, psi)
6,400 - 7,400 {65 - 75, 920 - 1,070)
Power steeringfluidRecommended power steering fluid
Fluid capacity | {US qt, lmp q0Reservoir
HONDA Power Steering Fluid
0.85 (0.90,0.75) at disassembly0.4 {0.42.0.35}
7.5 11.0 {0.30 - 0.43)with used belt
5.0 7.0 (0.20 0.28) with new belt10.5 - 14.0 10.41 - 0.55) with used belt7.5 10.010.30 0.39) with new belt
390 540 {40 55,88 '120) wrth used bek
340 - 490 (35 - 50, 77 - 110) with used belt
740 880 (75 - 90, 170 - 200) with new belt
640 780 (65 - 80, 143-176)with newbelt
Power steeringbelt*
Deflection with 98 N (10 kgf,22 lbf)
between pulleys '99 modell 81642 Engine Type only
'96 '99 models: Other Engine TYPes
ron.ionffiN (kgf, lbf) '99 model: 81642 Engine Tvpe only'96 -'99 models: Other Engine TYPes'99 modelr 81642 Engine TYPe onlY'96 '99 models: Other Engine TYPes
3-17

!
Fuel and Emrsslons
SoecialToofs .....,...."..,. 11-2
Component Locations
lndex ....................., ......... 11-3
Svstem Description
Vacuum Connections ................,,..,.. ......... 11-12
Electrical Connections ...............,.,.,... ....... 11-29
System Connectors ........,.,.,.......................... 1 1-51
Troubleshooting
Troubleshooting Procedures ................. .. 11-81
Engine Control Module/PowertrainControl Module TerminalAfiangement ....,.,..... 11-88
Diagnostic Trouble Code Chart .................,., 11.97
How to Read Flowcharts .,.......................... . 11-103
PGM-Fl System
System Description ...... 11-10,1
Troubleshooting Flowcharts
Engine Control Module/PowertrainContlol Module ........ 11-107
Manitold Absolute Pressure Sensor .....'. . ... 11-115
fntake Air Temperatuie Sensor ..... . . ., . 11'121
Engine Coolant Temperatuae Sensol ........., 11-128
Throttle Position Sensor ...................,........... 11-132
Primary Heated Orygen Sensor (Sensor 1l ... 11-139
Secondary Heated Oxygen Sensor(Sensor 21.................................................... 1 1-153
Heated Oxygen Sensor Heater ...................,. 11-157
Fuel Supply System ...... 11-164
Random Mislire ......., ..11-166
Misfire Detected in One Cylindsr ................. 11-167
Knock Sensor .,.,............ 11-170
CKP/TDC/CYP Sensor ................................... 11'172
Vehicle Speed Sensor ...........,......,...,.,........... 1t-176
Barometric Pressure Sensor ...............,......... I 1-178
Electrical Load Detector,.,,............................ 1 1-179
CKF Sensor .................... 11-183
ECM/PCM Internal Circuit ............................. I 1-188
A/T Signal {TMA/TMBI .................................. I 1-189
ldle Control System
System Doscriplion ............ 11-190
Troubleshooting Flowcharts
ldle Control System ...... 11-192
ldle Air Control Va1ve .................................... I 1-19i1
Starter Switch Signal .................................... 1 1'202
Air Conditioning Signal ................................. 11'201
Ahernator FR Signal .................................... . 1 1-208
BrakeSwitch Signal ..................................... f 1"210
Power Sleering Prossure Switch Signal ......11-212
A/T Gear Position Signal ............................... 11-216
Clutch Swiich Signal ................................-.... 11-214
ldte Speed Setting . .............11-220
Fuel Supply System
Fuel Lines .,...................,.,.,.,11-221
Fuef Tube/Ouick-Connect Fittings ..........,.,........ 11 -227
System Description ....'.... 11-230
Fuel Pressure .......,.,,........... 11-230
Fuef fniectors ......................11-232
Fu€f Pressure Regulator .....,.......................'...,. 11-231
Fuef Fifter ............................11-235
Fuel Pump .............'.......'.... 11-236
PGM-FI Main Relay .............11'237
Fuel Tank ................ ....,...'.'.' 11'211
Intake Air System
System Description ....-.-.....11-243
Air Cfeaner ...........,......."". .11-211
Throttle Cable .....................11-211
Throttfe Body ........ ..'... . . .,.11-211
Fuel Iniestion Air Control System ,.,.,....-........... 11-250
Emission Control System
System Description .-..........11-252
Taifpip€ Emission ...............11-252
Three Way Catafytic Convert€r ............,.,,.,.,.,.... 11 -252
Exhaust Gas Racirculaiion System ...,.,,,,.,.,.,.,,. 11'254
Positive Crankcas€ Ventilation System .... . . .. 11-266
Evaoorative Emission Controls ..................,,..,.,. 11 -267

Probable Cause List lFor th€ DTC Chart, see page 11-971*: '99 - 00 models
Probable GausePageSystem
11 1-107Engine Control Module (ECM)/Powertrain Control Module (l'uM)
PGM-Fl main relay
l^^iti^n cwetam
211-230,231
3't't-237
Section 23
51'1-172,183Crankshaft Position/fop Dead Center/Cylinder Fosltlon sensor clrculr' Lr\F selrsor
circuit
Intake Air Temperature (lAT) sensor circuit
ldle Air Control (lAC) Valve
ldle speed adjustment
Throttle bodY
Throftle cable
Manifold Absolute Pressure (MAP) sensor
Throftle Position (TP) sensor
Barometric pressure (BARO) senso'
Mf g"a, po"ition signal (see page 11-216) or clutch switch signal
Brake switch signal
Air Cleaner
lntake air pipe
Three Way Catalytic Converter (TWC)
Evaporative emission (EVAP) control
Contaminated fuel
ORVR vent shut valvs
't1-124
71 1-194
I11-220 - 223
11-241
'1011-244
1111-115
1211-132
13't1-178
14Section 14. 11-218
1511-210
16't1-244
1811-252
1911-261
20
21*11-296
(cont'd)
11-85

Troubleshooting
Engine/P_o_wgrtrain Control Module Terminal Arrangement('96 - 98 Models '99 - 00 Dt6y5 engine with M/T) tc'oniOi
ECM/PCM CONNECTOR C {31PI
1
CKFP
2
CXPPTDCPa
ACS
5
sTs
7
scsII
rMA
10
v8u121314t51517
ALTF
TE
vss23lP+
21252930
TMA
Wire side of female terminalsECM/PCM CONNECTOR C (31PI
NOTE: Standard baftery voltage is 12 V
'1: USA modelr2rA,.T (D16Y7, O16Y8 ensane)*3: CVT (O16Y5 engine)*4: Ay'T and O16Y7 engine'5: Excepl A./T snd Dl6Y7 engine16: Ay'T (D16Y8 ensine){7: CVT (Dl6Y5 eosine) and O16Y8 enoine"8: 96 Dl6Y8 engine (coupe),'97 D16y8 engine (coupe: atl:ed-9I t!!rnodelr,'98 D16y5 ensine,,98 D16y8 e;sine.D16Y5 lM/T) ensine
1-90
19: D16Y5 engine'10: M/T (Dl6Y5 engine)*11r Except M/T 116Y5 engine)*12: D16Y5, D16Y8 engine*13: Dl6Y8 enqine*14: O16Y7 enginei15: '-97 O16Y7 engjne (coupe: KL modet, sedan: KL (LX) modet),'98D16Y7 enqine'99 - 00
1
To.min!lnumberWiracoloaTorminalnameDo6criptlonSignal
1BLU/REDCKFP (CKF SENSOR P SIDE)Detects CKF sensor.With engine running: pulses2BLUCKPP (CKP SENSOF PSIDE)Detects CKP sensor.With engine running: pulses3GRNTDCP {TDC SENSOR PSIDE}Detects TDC sensor,With engine running: putses4YELCYPP (CYP SENSOR P SIDE)Detects CYP sensor.With engine running: pulses
5BLU/FEDACS {Tr'C SWITCH SIGNAL)Detects ,ay'C sw;tch signat.With Iy'C switch ONr 0 VWith Ay'C switch OFF: batrery vottage
6BLU/ORNSTS (STARTER SWITCHSIGNAL)Detects staner swilch signal,With staner switch ON ltlt): batery vohageWith staner switch OFF: 0 V
8RNSCS (SERVICE CHECKSIGNAL)Detects service check connector signal{the signalcausing a OTC indicationlWith the connector connected: O Vwith the connector disconnected: about 5 vor battery voltageLT 8LUK,LINE (DLC)Sends and receives scan iool signal,Wirh ignition switch ON { ): about 5 V
9+3GRYDat6 communication with TCM: ECMcontrol ctat6 outputWith ignition switch ON (tt):putses
10WHT/BLUVBU (VOLTAGE BACK UP)Power source forthe ECM/PCMcontrol circuit. Power sourc€ lortheDTC memory
Battery voltage at all times
11WHT/REDCKFM {CKF SENSOR MSIDE)Ground tor CKF sensor signal.
12CKPM (CKP SENSOR MSIDE)Ground for CKP sensor s;gnat.
REDTDCI\4 (TDC SENSOR MSIDE)Ground for TDC sensor signal.
14BLKCYPM (CKP SENSOB MSIDE}Groond for CYP sensor signal.
15."BLU/BLKVTM (VTEC PRESSUREswtTcH)Oetscts VTEC pressure switch signal.Wrth engine at low enginespeed:0 VWth engineathigh engine speed: tatteryvoltase
16GRN
PSPSW (P/S OIL PRESSUREswtTcH)Detects PSP switch signal.At idle with steering wheel in straight aheadposition:0 VAt idle with stsering wheet at fult tock batteryvoltage'17WHT/REDALTF (ALTERNATOR FRSIGNAL)Detects ahernator FR signal.With fullyw6rmed up engine running:0 V- bat-teryvohage (depending on electricat toad)18BLUI/VHTVSS {VEHICLE SPEED SEN-SOR}Oetects VSS signal.Whh ignitjon switch ON {tt) and front wheetsrotating: cycles 0 V- 5 V23+14BLKlP+ {HO2S PUtr4P CELL +}Controls HO2S pump ce .With ignition switch ON (ll): abour 0.5 - 5.3 V
24.10REDrP-, vs- {Ho2s coMt oN)Reference voltage supply.With fullywarmed up engine et idle:about2.6-2.8 V25*roVS+ (VS CELL VOLTAGE)Detects VS cell voltage.With ignition switch ON t): abour 7 V
29LT GRN*'ATPNP (Ar'T GEAR POSI,TroN swrTcH)Deteds Ay'T g6srposhion switch signat.In E orE position: O Vln any other position: battery vottage
RED{roCLSW (CLUTCH SWITCH}Detects clutch switch signal,Wilh clutch pedal released: about 5 VWith clutch pedal deDressed: O V30PNK4TMBData communication with TCM:ECM controldata inputWith ignit;on switch ON (lt):putses

ECM/PCM CONNECTOR B (25PI
Wire side of female terminals
FCM CONNECTOR B {25P)NOTE: Standard battery voltage is 12 V
Sign.l
YELtsLKIGP1 IPOWER SOUflCE)Powor sou rca for the ECM/PCM conlrolcirwhh ignilion swilch ON (ll)ibatteryvoltageWith ignition switch OFF:0 V
BLKPGl {POWEB GNOUND)Ground fo. the ECM,/PCM contrclcncuit'Less than 1.0 V at slltimes
FEDlNJ2 (No 2 FUEL INJECIOR)Drives No. 2 fu€l inieclor'Wirh enqine runnin9: dulv conlroll6d
BLUlNJ3 (No.3 FUEL INJECTOB)Orives No.3 fuel inieclor'
YELlNJ,r lNo. 4 FUEL INJECTOF)Drives No. 4 luel injector'
6BLI(BIUIACV P (IDLE AIR CONTROLVAIVE POSITIVE SIDE)O.iv€s IAC valve {Posirivo side)Wilh engine running: duty conrrollod
BEDESOL {EG8 CONTROLSOLENOID VALVE)Drives EGF controlsolonoid valveWith EGR operaiing during driving wirh follv warmedup onginsl dutY controlledWilh EGR nol op€r.ring:0 V
PNKSLKHlC tstvr (PH-PL CONTnOLLINEAfl SOLENOID NEGATIVEst0E)
G rcund for PH-PL control linsar solsnoid
8.,LS - (A/T CLUTCH PFESSURECONTROL SOTENOIDVALVE'sroE)
A/Tclutch prsssure conrrol sol€nod valv€pow6r slpply negative elecrodeWith ignilion swirch ON (ll):dutv controll€d
9YEUBLKrGP2 {POWE8 SOUFCE)Powor $urce for lhe ECI{,'PCM controlc'rcuitwnh ignirion swirch ON (ll): ban€ry voltag€with ignirion swnch oFF:0 v
10BLKPG2IPOWER GSOUNDIGround lor ths ECM/PCM controlctrcuil
118RNINJl {No,1 FUEL INJEqIOR)orives No. r ru6l Iniocror.With onsino at low lpm:0Vwith ens,n. ar hish tpm:bsneryl9!9gl-12"GRN,.YELWS (WEC SOLENOID VALVE)Orivos WEC solanoid v.lvs.
13YEUGRNICM {I6NITION CONTROL MODULE}
With ignition switch ON (ll)r b5n6ry volt€gsWilh engino running: Puls6
15ORNIACV N (IDLE AIN CONTSOIVALVE NEGATIVE SIOE)Drivos the IAC valve lnogativ€ 3idelWith €ngin€ ru nningi dr]tv controlled
REDLS + (A,/T CIUICH PRESSURECONTFOT SOIENOIOVALVE +SIDE}
A/T clutch pr€so.6 controlsolenoid valvepow6r slpply posiliv€ oroclrodeWirh ignition swatch ON (lll: dutYcontrorled
HLC LSP (PH-PI CONTROI LIN.EA8 SOLENOID POSITIVE SIDE)Orives PH-PL control line€r solenoidWith qnition switch ON (lll: Pulsing srgnal
PNK/BTUSC LSM (STAfiT CLUTCHLINEAR SOLENOIO N€GATIVESIDE)
Groundforstartclutchcontrol line6r
20BnN/AtKLGI (LOGIC GEOUNO)Ground for lh€ EcM/PcM controlcircuit'L6se rhan 1.0 v.i alltimes
21VBU IVOLTAGE 8AC( UP)Powet source torlhe ECM/PCM control circuitPower sourco tor th6 DTC m€mory'Battaryvoltage aitnEtrmes
22BFN/8IKLG2 (LOGIC GSOUND)Ground iorths ECMnCM conrrol circuir'tsss thah 1.0 v al all times
238LI(BLUIACV (IOTE AIR CONTROLWitn ongine funning: dutv conrol!6d
25'3YELSC LSP {STANT CLUTCH LINEARsotENorD PoSlrlvE slDE)Orives sran clutch control linesr solonoid.With ignilion swilch ON (ll): Pulsing sign3r
r1: A/r (D16 , D16Y8 ensins)
'3:CVT {O16Y5ensino)
'4: Ol6Y5, Dl6Y8, B164? onsina
(cont'd)
1 1-93

PGM-FI System
System Description
CKP/TDC/CYP Sensor
MAP Sensor
IAT SensorTP SensorEGR Valve Lift Sensor*'Primary H02SSecondary HO2SVSSBARO SensorELD*'KS€Starter SignalALT FR SignalAir Conditioning SignalA/T Gear Position SignalBattery Voltage {lGN.1}Erake Switch SignalPSP Switch SignalFuel Tank Pressure Sensor*iVTEC Pressure Switch*5Clutch Switch Signal*6Countershaft Speed SensornBMainshaft Speed Sensorrs
-\
----t /
F;ilrr j"-----fi-tri-'r.;l
Fb"t."'i" d" c;;il
F,h"'c;;tr*".io";-l
@."r.l"sc;;ll
EaM/PcM B""k-p F"""till
r\
-:/
Fuel IniectorsPGM-Fl Main Belay {Fuel Pump)MILIAC Valve!y'C Compressor Clutch RelayRadiator Fan Relay*,Condenser Fan RelayALT*'lcMEVAP Purge Control Solenoid
Primary HO2S HeaterSecondary H02S HeaterEGR Control Solenoid Valve*rEGR valve*6EVAP Bypass Solenoid Valve*'EVAP Control Canister Vent Shut
VTEC Solenoid Valve*5DLCLock-up Control Solenoid Valve*aShift Control Solenoid Valve*3Linear Solenoid Valve*3
*1: Dl6Y5 engine*2: USA model*3: CW (D16Y5 ensine), D16Y8 engine and 81642 ensine*4: '96 D16Y8 engine lcoupe),'97 Dl6Y7 engine (coupe: KL model, sedan: KL (LX) model),'97 D16Y8 engine {coupe: all models, sedan: KLmodel),'98-all models,'99'all models,'00-all models+5: D16Y5, D16Y8,816A2 engine*6: M/T (D16Y5 enginei*7: CVT 1D'l6Y5 engine)+8: A/T (D16Y7, D16Y8 engine)*9: '96 D16Y5 engine,'96 D16Y7 engine,'96 Dl6Y8 engine (sedan),'97 D16Y5 engine,'97 Dl6Y7 engine (coupe: KA, KC models, sedan:KA, KC, KL (LX) models, hatchback: all models),'97 D16Y8 engine (sedan: KA, KC modelsi
PGM-FI Sy3lem
The PGM-Fl system on this model is a sequential multipon fuel injection system.
Fuel iniector Timing and Duration
The ECM/PCM contains memories for the basic discharge durations at various engine speeds and manifold air flow rates.
The basic discharge duration, after being read out from the memory. is further modified by signals sent from various sen-
sors to obtain the final discharge duration.
ldle Air Control
ldle Air Control Valve llAC Valve)
When the engine is cold. the A,/C compressor is on, the transmission is in gear, the brake pedal is depressed, the P/S load
is high, or the alternator is charging, the ECM/PCM controls current to the IAC Valve to maintain the correct idle speed.
lgnition Timing Control
. The ECM/PCM contains memories for basic ignition timing at various engine speeds and manifold air flow rates.
lgnition timing is also adjusted for engine coolant temperature.
. Aknockcontrol system was adopted which sets the ideal ignition timing for the octane rating ofthegasoline used.*3
Othgr Control Funqtions
1. Starting Control
When the engine is started, the ECM/PCM provides a rich mixture by increasing fuel injector duration.
2. Fuel Pump Control
. When the ignition switch is initially turned on, the ECM/PCM supplies ground to the PGM-Fl main relay that sup-plies current to the fuel pump for two seconds to pressurize the fuel system.. When the engine is running, the ECI\4PCM supplies ground to the PGM-FI majn relay that supplies current to the fuel
oumo.
. When the engine is not running and the ignition is on, the ECM/PCM cuts ground to the PGM-FI main relay which
cuts current to the fuel pump.
11-104
INPUTS
ENGINE CONTROL MODULE (ECMY
POWERTRAIN CONTROL MODULE (PCM) OUTPUTS

1\
Evaporative Emission (EVAPI Controls
Description
The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The
system consists of the foliowing components:
A. Evaporative Emission (EVAP) Control Canisto]
An EVAP control canister is used for the temporary storage of fuel vapor until the fuel vapor can be purged from the
EVAP control canister into the engine and burned.
B. Vapor Purge Control System
EVAP control canister purging is accomplished by drawing fresh air through the EVAP control canister and into a port
on the intake manifold. The purging vacuum is controlled by the EVAP purge control solenoid valve.
I'96 D16Y5 engine,'96 Dl6Y7 engine,'96 D16Y8
engine (sedan),'97 D16Y5 engine,'97 D16Y7
engine (couper KA, KC models, sedan: KA, Kc'
KL iDX) models, hatchback: all models), '97
D 16Y8 engine (sedan: KA, KC models)l
I'96 D16Y8 engine (coupe),'97 D16Y7 engine
(coupe: KL model, sedan: KL (LX) model)"97
D16Y8 engine (coupe: all models, sedan: KL model)'98-all models,'99-all models,'00-all modelsl
I
c.
D.
or
l'lc COMPRESSOR CLUTCH ON
and
INTAKE AIR TEMPERATURE ABOVE 160"F (41'C)
Fuel Tank Vapor Control System
When fuel vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and
regulates the flow of fuel vapor to the EVAP control canister.
Onboard Refueling Vapor Recovery (ORVRI System {'99 - 00 models}
During refueling. the oRVR {onboard Refueling Vapor Recovery) vent shut valve opens with the pressure in the fuel
tank. and feeds the fuel vapor to the EVAP control canister.
t(cont'd)
11-267
EVAP PURGE CONTROL SOLENOID VALVE DUTY CON-
TROLLED AFTER STARTING ENGINE
ENGINE COOLANT TEMPERATURE ABOVE 154'F {68"C)
INTAKE AIR TEMPERATURE ABOVE 32'F (O'C)
and
VEHICLE SPEED ABOVE O MILE (O KM/h}
ENGINE COOLANT TEMPERATURE ABOVE 154'F (68'C)