1998 HONDA CIVIC mainshaft

Standards and Service Limits
Manual Transmission S40 - Section 13
MEASUREMENT
Capacity | (US qt, tmp qt)
End playDiameter of ball bearing contact area A(Transmission housing side)Diameter of 4th, 5th gear contact area BDiameter of 3rd gear contact area CDiameter of ball bearing contact area D(Clutch housing side)Bunout
STANDARD INEW}'1.9 (2.0, 1.7)for overhaul1.8 (1.9, 1.6) for oitchange
0.11 0.18 (0.004 _ 0.007)21.987 - 22.000 (0.8656 0.8661)
26.980 26.993 (1.0622 _ 1.0627)33.984 34.000 (1.3380 1.3386)25.917 - 25.99011.0227 1.0232)
0.02 (0.001) max.
SEBVICE LIMIT
ro
MainshaftAdjust21.930 (0.8634)
26.930 ('1.0602i33.930 (1.3358)
25.92011.0205)
0.05 (0.002)
39.07 ('r.538)
0.33 {0.013)0.31 (0.012)
30.15 (1.187)
30.05 (1.183)
37.07 {1.459)0.31 (0.0'12)
28.35 (1.116)
LrO
39.009 39.025 (1.5358 1.5364)0.06 0.21 (0.002 0.008)0.06 0.19 (0.002 0.007)30.22 30.21 (1.190 1.192)30.12 - 30.17 (1.186 1.188)
37.009 37.025 (1.4570 _ 1.4577)0.06 - 0.19 (0.002 - 0.007)28.42 - 2a.47 11.119,1.1211Countershaft Diameter of needle bearing contact area ADjameter of lst gear contact area gDiameter of ball bearing contact area CRunout
30.000- 30.015 {1.181 1 - 1.1817)35.984 - 36.000 (1.4167 1.4173)24.980 24.993 (0.9835 - 0.9840)0.02 (0.001)max.
29.950 (1.1791)3s.930 r.4146)24.930 (0.9815)0.0s (0.002)
End play (When tightened by the specified torque)Thickness
41.009 - 41.025 ('t.6145 1.6152)0.03 0.10 (0.001 _ 0.004)30.41 30.44 (1.197 - 1 198)
41 .01 11.617J0.22 (0.009)
30.36 (1.195)
gear End ptay (When tightened by the specified torque)44.009 - 44.025 (1.7326 1.7333)0.04 - 0.12 (0.002 - 0 005)31.91 31.96 (1.256 1.258)
44.01 11.t35)0.24 (0.009)
31.85 (1.2s4)
33.04 {1.301)38.93 (1.533)32.01 (1.260)
27.06 (1.065)
33.93 (1.336)
3r.93 {1.257)22.81 (0.898)
23.51 (0.926)
15.08 (0.594)
0.14 (0.006)
0.4 (0.016)
0.16 (0.006)
o.6210.0244112.78 (0.5031)
t.D.o. D.Length
33.000 - 33.010 (1.2992 1.2996)38.989 39.000 11.53s0_ 1.53s4)32.03 - 32.06 tl.261 - 1.2621Spacer collar(Mainshaft 4thand 5th gear)
Beverse rdler gear LD.Gear to reverse gear shaft cjearance
27.002 27.012 (1.0631 _ 1.0635)33.989 - 34.000 (1.3381 - 1.3386)3r.989 - 32.000 (1.2594 1.2598)22.83 - 22.86 (0.899 0.900)23.53 23.56 (0.926 - 0.928)
rs.016 15.043 (0.5912 _ 0.5922)0.032 0.077 (0.0013 _ 0.0030)Ring-to gear clearance {Ring pushed against gear)0.73 - 1.l8 (0 029 - 0.046)Fork finger thickness
Fork to-synchro sleeve clearance
lsv2nd/sth I 6.2 - 6.410.244 - O.ZS2)3rdl4th 7.4 i.6lO 2g1 O 2ggt0.35 - 0.65 (0.014 - 0.026)Beverse shitt fork Fork pawl groove widthFork to-reverse idler gear clearanceL groove widthFork'to-5th/reverse shift piece pin clearance
12.7 - 13.0 (0.50 _ 0.51)0.5 1. t (0.020 0.043)7 .05 - 7 .25 tO.21A - 0.28510.05 0.35 (0.002 0.014)Sh ift a rm A tnner diameter of sh ift arm C contact ffiShift arr14-go "L;L ".m C clearance13.05 13.13 (0.514 0.517)0.05 - 0.23 (0.002 _ 0.009)Inner diameter of shift arm B shaft contact pointShift arm 8-to shaft clearanceShift arm B to-shift piece clearanceDiameter of shift piece contact point
13.973 - 14.000 (0.5501 0.5512)0.013 0.070 (0.0005 _ 0.0028)0.2 - 0.5 {0.008 0.020)12.9 13.0 (0.508 - 0.512)MBS Shift prece Diameter of pin6.9 7 .1 \O.27 0 2A)
0.095 (0.004)
0.14 (0.006)
Adjust with shim
Differenlial carrier Pinion shaft bore diameterCarrier-to pinion shaft clearanceDriveshaft bore diameterCarrier to,driveshaft clearance
18.010 18.028 (0.7091 _ 0.7098)0.023 0.057 (0.0009 - 0.0022)26.025 26.04s {1.0246_ 1.0254)0.045 - 0.086 (0.0018 0.0034)BacklashPinion gear bore diameterPinion gear-to pinion shaft clearance
0.05 0.15 (0.002 0.006)18.042 - 18.066 (0.7103 _ 0.7113)0.055 - 0.095 {0.0021 _ o.oo37)
0 0.1 10 - 0.004)
3-8
LO

Unit of length: mm (in)
Transmission oil
43.009 43.025 (1.6933 - 1.6939)
0.06 0.21 (0.002 - 0.008)
31.42 - 31.41 \1.231 1.2391
t.D.End play
Thickness
Diameter of ball bearing contact area A
Diameter of lst gear contact area I
Diameter of needle bearing contact area C
Runout
LD.End play {When tightened by the specified torque)
Thickness
LD.o.D.Length
Spacer collar(CoLrntershaft 2ndgear)
Spacer collar(Mainshaft 4thand 5th gear)
LD.o.D.Lengtn
Manual TransmissionS4C - Section 13
M€ASUREMENT
MainshaftFnd plaVDiameter of ball bearing contact area C(Clutch housing side)Diameter of 3rd gear contact area B
Diameter of ball bearing contact area 'q(Transmission housing side)
Runout
Capacity | (US qt, lmp qt)
LD.End play
Thickness
2.3 (2.4,2.0) for overhaul2.2 (2.3, 1.9)for oil change
0.11 - 0.18 (0.004 - 0.007)21 .917 - 21 .990 11.1015 - 1 .10201
37.984 38.000 (1.4954 1.4960)
27.987 - 28.000 (1.1018 1.1024)
STANDARD {NEW)
0.02 (0.001)max.
SERVICE LIMIT
Adtust27.930 (1.0996)
37 930 (1.4933)
27.940 (1.1000)
0.05 (0.002)
Mainshaft 3rd and4th gears
43.009 - 43.025 (1.6933 1.6939)
0.06 - 0.21 (0.002 0.008)
34.92 - 34.91 \1.315 1.311)
31.42 - 31.41 (1.237 1.239)
24.980 24.993 (0.9835 0.9840)
36.984 37.000 (1.4561 - 1.4567)
33.000 - 33.015 (1.2992 - 1.2998)
0.02 (0.0008) max.
3rd4th
43.08 (1.696)
0.3 (0.01)
34.3 ('t.350)
31.3 11.232)
43.08 (1.696)
0.3 (0.01)
31.311.232)
24.940 (0.9818)
36.930 (1.4539)
32.950 (1.2970)
0.05 (0.002)
41.07 (1.617)
0.25 (0.01)41.009 - 41.025 (1.6145 - 1.6152)
0.045 - 0.205 (0.0018 0.0081)
44.009 44.025 {1.7326 - 1.7333)
0.07 0.14 (0.003 - 0.006)28.92 - 28.97 (1.1386 -'j.1405)
36.521 - 36.531 (1.4378 1.4382)
41.989- 42.000 (1.6531 - 1.6535)
29.07 - 29.09 11.1444 - 1.1453)
44.07 (1.735)
0.24 (0.009)
28.8 (1.134)
36.54 (1.439)
41.93 (1.651)
31 .0O2 - 31 .012 11 .2205 - 1 .2209'l
36.989 - 37.000 {1.4563 - 1.4570)
56.45 - 56.55 1'2.2224 - 2.2264126.03 - 26.0A 11 .025 - 1 .021 |
31.06 (1.223)
36.94 (1.454)
(cont'd)
3-9

Standards and Service Limits
Automatic Transmission (cont'd) - Section l4
MEASUREMENTSTANOARD {NEW)SERVICE LIMITDiameter of needle bearing contact areaOn mainshaft stator shaft bearingOn mainshaft 2nd gearOn mainshaft 4th gear collarOn mainshaft 1st gear collarOn countershaft (left side)On countershaft 3rd gear collarOn countershaft 4th gearOn countershaft reverse gear collarOn countershaft 1st gear collarOn reverse idler gear shaftInside diameter of needle bearing contact areaOn mainshaft 1st gearOn mainshaft 2nd gearOn mainshaft 4th gearOn countershaft 1st gearOn countershaft 3rd gearOn countershaft 4th gearOn countershaft reverse gearOn reverse idler gearOn stator shaft (ATF pump sideiOn stator shalt (stator side)Reverse idler gear shaft holder l.D.End playMainshaft lst gearMainshaft 2nd gearMainshaft 4th gearCountershaft lst gearCountershaft 3rd gearCountershaft 4th gearReverse idler gearCountershaft reverse gearSelecto. hub O.D.Mainshaft 4th gear collar lengthMarnshaft 4th gear collar Ilange thicknessMainshaft lst gear collar length
22.980 22.993 10.9047 0.9052|j35.975 35.991 (1.4163 - 1.4169)31.975 31.991 (1.2589_,1.2595)30.975 - 30.991 t1.2195 1.2201136.004 36.017 (1.4175 - 1.4180)35.980 35.996 (1.4165 - 1.4172)27.980 - 27.993 (1.1016 - 1.1021)31.975 31.991 (1.2589 - 1.2595)31.97s 31.991 (1.2589 - 1.2595)13.990 - 14.000 {0.5508 - 0.5512)
35.000,3s.016 (1.3780 - 1.3786)41.000 - 41.016 11.6142 - 1.6148)38.000 - 38.0'16 {1.4961 - 1.4967)38.000 38.016 (1.4961 - 1.4967)41.000 41.016 (1.6142 - 1.6148)33.000 - 33.016 (1.2992 1.2998)38.000 - 38.016 (1.4961 - 1.4967)18.007 - 18.020 (0.7089 - 0.7094)29.OO0 -29.O1311.1417 - 1.1422127.O00 27.02111.0630 - 1.0638)'14.416 - 14.434 (0.5676 0.5683)
0.08 0.19 (0.003 - 0.007)0.05 - 0.13 (0.002 0.005)0.075 - 0.185 (0.003 0.007)0.1 - 0.5 {0.004 - 0.020)0.05 - 0.17 {0.002 - 0.007)0.10 - 0.18 (0.004 0.007)0.05 - 0.18 (0.002 0.007)0.10 - 0.25 (0.004 0.010)51.87 - 51.90 {2.042 2.043)45.00 - 45.03 (1.771 - 1.773)4.435 - 4.525 (0.1746 - 0.1781)27.00- 27.15 (1.063 - 1.069)Countershaft distance collar length38.87 - 38.90 {1.530 - 1.531)38.92 38.95 {1.532 - 1.533)38.97 - 39.00 (1.534,1.535i39.02 - 39.05 (1.536 - 1.537)39.07 - 39.10 {1.538 - 1.539)39.r2 - 39.15 (1.540 - 1.541)39.17 - 39.20 (1.542 - 1.543)39.22 - 39.25 (1.544 - 't.545)
39.27 39.30 (1.546 - 1.547)Countershaft 3rd gear collar length ,96 97 models'98 - 00 modetsCountershaft reverse gear collar lengthCountershaft reverse gear collar flangethacknessCountershaft 1st gear collar lengthCountershaft lst gear collar flange thickness
21.15 - 21.20 (0.833 - 0.835)20.65 20.70 (0.813 - 0.825)14.5 r4.6 {0.571 - 0.575)
2.4 - 2.6 10.094 0.102)14.s - 14.6 (0.571 - 0.575)2.4 2.6 (0.094 - 0.102)
Wear or damage
t a.\
L

Automatic TnsmtsstonSection 14Un;t of length: mm {in)
r
MEASUREMENT
a
STANDARD INEW)SEBVICE LIMIT
TransmissionMainshaft 2nd gear thrust washer thickness
Thrust washer thicknessMainshaft ball bearing left sideMainshaft lst gear
Countershaft 3rd gear splined washer '96 97 models'98 - 00 models
One-way clutch contact area
Countershaft 1st gear LD.
Park gear O.D.Mainshaft feed pipe A, O.D. (at 15 mm (0.59 inlfrom
Mainshaft feed pipe B, O.D. (at 30 mm {1.2 in) from end)
Countershaft feed pipe O.D. lat 15 mm (0 59 in) from
eno)Mainshaft sealing ring thickness
129 mm 11.1 iniand 35 mm {1.4 in))
Mainshaft bushing l.D.
Mainshaft bushing LD.
Countershaft bushing LD.Mainshaft sealing ring goove width
3.97 4.00 10.156 - 0.157)4.02 - 4.05 (0.158 0.159)
4.07 - 4.10 (0.160 - 0.161)4.12 - 4.15 (0.162 0.163)
4.17 - 4.20 10.164 - 0.165)4.22 - 4.25 (0.166 - 0.167)4.27 - 4.30 (0.168-0.169)
4.32 - 4.35 (0.170 0.171)
4.37 - 4.40 10.172 - 0.173)
4.42 - 4.45 10.114 - 0.175l
1
I
+Wear or damage
2.95 - 3.05 {0.116 - 0.120)2.43 2.50 (0.096 - 0.098)4.45 - 4.50 (0.175 - 0.177i4.95 - 5.00 (0.195 0.197)
Wear or damage
+I
83.339 - 83.365 (3.2810 3.2821)
66.685 - 66.698 (2.6254 - 2.6259)
8.97 - 8.98 (0.353 - 0.354)
5.97 5.9810.2350 - 0.2354i7.97 - 7.98 (0.3138 - 0.3142)
1.87 - 1.97 {0.074 0.078)
6.0 r8 - 6.030 {0.2369 - 0.2374)
9.000 - 9.01s 10.3543-0.3549)8.000-8.022 (0.3150 - 0.3158)
2.025 - 2.015 l0.0197 -0.0417)
Wear or damageWear or darn age
8.95 (0.352J
5.95 (0.234)
7.95 (0.313)
1.80 (0.071)
6.045 (0.2380)
9.03 (0.356)
8.03 {0.316)2.08 (0.082)
Regulatorvalve body
Seating ring conlact area l.D.35.000 35.02511.3780 1.3782)35.050 (1.3799)
Shifting device andpark brake controlReverse shift fork Iinger thicknessPark brake pawl
Park gear
5.90 - 6.00 (0.232 - 0.236)5.40 (0.213)
lWear or other defect
Servo bodyShift fork shaft bore LD.
Shift fork shaft valve bore l.D.
14.000 - 14.010 (0.5512 - 0.5516)
37.000 - 37.039 (1.4567 - 1.4582)37.045 (1.4585)
ATF pumpATF pump gear side clearanceATF pump gear-to-body clearance DriveDaiven
ATF pump driven gear LD.ATF pump driven gear shaft O.D
0.03 -0.05 {0.001 - 0.002)0.1050 - 0.1325 (0.0041 - 0.0052)
0.0350 - 0.0625 (0.0014 - 0.0025)14.0'|6 - 14.034 {0.5518 - 0.5525i13.980 13.990 (0.5504 0.5508)
0.07 (0.003)
Differentialcarrier
Pinion shaft contact area LD.
Carrier to'pinion clearanceDriveshaft contact are LD.
Carrier to-driveshaft clearance
18.010 18.028 {0.7091 0.7098)
0.023 - 0.057 (0.0009 -0.0022)
26.025 * 26.045 11.0246 1.0254)
0.045 - 0.086 (0.0018 - 0.0034)
0.1 {0.004)
0.12 {0.005)
Differentialprnron gearBacklasht.D.Pinion gear to-pinion shaft clearance
0.05 - 0.15 {0.002 - 0.006)18.042 - 18.066 (0.7103 - 0.7113i0.055 - 0.095 (0.0022 - 0.0037)ffi.oour
Set ring-to bearing outer race clearance0 - 0.15 (0 0.006)Adjust
(cont'd)
3-13

System Description
Electrical Connections ('99 - 00 Models except Dl6Y5 engine with M/Tl
(cont'd)
cl09
racvP*{- BLK/eLu-lqt
pl
MAINSHAFT SPEEO SENSOR
clla
COUN'IERSHAFTSPEED SENSOR
c121
tt I I
UNEARSOL€NOIDVALVE
SOLENOID VALVE --
11-46

PCM CONNECTOR B {25P)
Wire side of {emale terminals
CONNECTOR B (25P)',
*1i USA model*2: A/T (D16Y7, Dl6Yg engine)*3: CVT (D16Y5 engine)*4: M and Dl6Y7 engane*5: Except A.rT and 016Y7 engine*6: A,/T (D16Y8 engine)*7r CVT (D16Y5 engine) and D16Y8 engine*8: '96 D16Y8 engine (coupe),'97 D16Y8
models, sedan: KL model),'98 Dt6Y5
engine,'99 00 Dl6Y5 1M/Ti engine
*9: D16Y5 engine*10: M/T (D16Y5 engine)*11: Except M/T {D16YS engine}*12i D16Y5, D16Y8 engine* 13: D16Y8 engine*14: D16Y7 engine*15: '97 Dl6YTengine (coupe: KL model, sedan: KL (LX) model)''98D16Y7 engine (cont,d)engine (coupe: allengine,'98 D16Y8
FCMNOTE: Standard battery voltage is 12 v'
erminalTnumoer
Wirecotol
TerminalnameDescriptionSignal
1LS_ (LINEAR SOLENOID
VALVE - SIDE)
Ground for linear solenoid valveWii-ignnion switctr oN {ll}: pulses
2REDLS+ (LINEAR SOLENOIDVALVE + SIDE)
-Drii6l linear solenoid valveWith ignilion switch uN (lll: pulses
3BLU/YEL
SHA {SHIFT CONTROLSOLENOID VALVE A)
-Drives shift control solenoid valve AWith engine running in 2nd,3rd gears:
battery voltageWith engine running in 1st,4th gears:
about 0 V
4GRN/BLKLC B (LOCK'UP CONTROL
SOLENOID VALVE B}Drives lock up control solenoid
valve B.
With lock-up ONI battery voltage
With lock-up OFF:0 v
5YELLC A (LOCK.UP CONTROLSOLENOID VALVE A)Drives lock up controlsolenoidWith lock-uP ON: baftery voltage
With lock-up OFFi 0 V
8PNKATPD3 (NT GEAR POSI.
TION SWITCHi
Detects Py'T gear Position switch
signal.
In [D31 position: 0 V
ln ;y other position: battery voltage
1lGRN^lr'HT
SHB (SHIFT CONTROLSOLENOID VALVE B)DnGs shift conttol solenoid valve BWith engine running in 1st,2nd: battery
vo|taqeWith;ngine running in 3rd,4th: about 0 V
12WHT/REDSLU (INTERLOCK CON
TBOL UNIT)
-DlivEilite'lock control,rnit.With ignition switch ON (ll) and brake
pedal depressed: 0 V
13GRN/BLK
D4 IND (D4 INDICATORLIGHT)
Drives D4 indicator light.With Pll indicator lrght turneo urr: oarterv
voltaoeWith ld indicator light turned OFF: 0 v
14WHTNMSG {MAINSHAFTSPEED SENSOR GROUND)
GZiiI'for mainshaft speed sensol
With engine running: Pulses
In E position: 0VIn any other position: battery voltage
REDNM {MAINSHAFT SPEED
SENSOR)
Detects mainshaft speed sensor
srgnal.
ATPR {M GEAR POSI
TION SWITCH)
Detects M gear Position switch
signal
't1BLUATP2 {A/T GEAR POSITION SWITCH)
Detects A/T gear Position switch
signal.
In E position: 0VIn any other position: battery voltage
22GRNNCSG (COUNTERSHAFT
SPEED SENSOR GROUND)Ground for countershaft speed
sensor.
23BLUNC (COUNTERSHAFT
SPEED SENSOR)
Detects countershaft speed sensor
signal.
Vvith ignition switch ON (ll), and front
wheels rotating: Pulses
24YELATPD4 {M GEAF POSI-
TION SWITCH)
Detects M gear Position switch
signal.
ln E position:0 VIn any other position: 5 V
25LT GRNATPNP (A"/T GEAR POSITION SWITCH)
Detects A/T gear Position switch
srgnal,
In E orE position:0 V
In any other position: battery voltage
!a
11-89

ECM/PCM CONNECTOR O {16P)
Wire side ol temale terminalsECM/PCM CONNECTOR D {16P)
(D16Y7, D16Y8 enginelNOTE: Standard battery voltage is 12 V.
L
.1 A/J (Dl6Y7, Dr6Y8 engine)
(cont'd)
1 1-95
5i!ml
YELLCA (LOCK.UPCON]ROLSOLENOID VALVE A)Orivos look-up controlsol€noid wlv€ a.With lock-up ON: httery vollageWith lock-up OFFi 0 V
GRN,M/HT
SHB {SHIFT CONTFOLSOLENOIO VALVE B)Drivos sh ift cont.ol solanoid valv6 Bln E posnion, in 1st lnd 2nd eoat ,n E E pos'tion:Battsry voltagoInElposirion. in 3rd seat in pd, El in.th sear in
l_d polition: o v
3''GRN/BLKLC8 (IOCK UP CONTBOLSOLENOID VALVE B)Drivs locl up conttol sol€noid v6lv€ Bwhen fulllock-up: Banory vollagaWnh naf locl-uP: Pulsing si9n6l
5',BLK/YELVSSOI (BATTEsYVOLTAGEFOB SOLENOID VALVE)Powe. sourc€ ol solGnoid valvewirh ignirion sitch ON (ll): battory voltaoeWirh ignnion switch OFF:0 v
ATPR (AT GEAR POSITIONswrTcH)Detecrs Ay'T g6a. position switch signal.In any olh€r position: APProx. 10 V
8LU/YEL
SHA iSHIFI CONTROLSOLENOIDVALVE A)Oriv€6 sh ift conirol sol€noid valve A.ln tr,tr position, in 2nd €nd 3rd sear in lpd, &lposirion: Batt€ry vollsgo;n 1d soar in E, E position, in.ih se6r in E
PNKATPO3 (AT GEAR POSITIONSWITCH)Oot6cts Ay'T S6.r poeirioo switch siSnalIn Enyoth.r position: APPror, t0 v
9''YELATPD4 {AT GEAE POSITIONswrTcH)Oorocts A/I gs8r position switch signal.In any oth6t position:APProx 5 V
BIUNC (COUNTE RSHAFT SPEEDSENSOB)DetocB counr€.shaft sp66d $osr sig.alsD€p€nding on v6hicls 8pe€d;Pul.ins signalWh6n v€hicls i5 ltoPPsd:0 v
REONM (MAINSHAFTSPEED SEN.soR)O€l€cts mainshalt sp€€d 3.nsor 3ign.lsWi$ engino rLrnningl PUls6s
NMSG {MAINSHAFT SPEEOSENSOR GFOUNO)Groundfo, mainshaft sp@d sensor.
13''!T GFNATPNP {AT GEAF POSITIONswrrcH)oetscts A/T 96ar pGitaon swhch signalIn par* or n6ulral:0 VIn sny olhd po3ition: APProx l0V
BLUATPz {AT GEAE POSITIONswrTcHlDor€cis !y'T gos. posilion swilch signal.In any oth6r Position: APProx, 10 V
16''GANNCSG {COUNTEBSHAFT SPEEDSENSOE GROUND)Ground lor countershaii sp€3d s6nsor.
r lo

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.
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INPUTS
ENGINE CONTROL MODULE (ECMY
POWERTRAIN CONTROL MODULE (PCM) OUTPUTS