Page 139 of 2189
Cylinder Head
Removal (cont'd)
9. Relieve fuel pressure (see section 11),
E@E Do not smoke while working on tho fuelsystem. Ke6p opgn flame or gpark away from lhework area, Drain fuel only into an app.oved containgr.
10. Remove the evaporative emission (EVAP) controlcanister hose, fuel feed hose and breather hose.
D16Y7 engine:
BANJO BOLT33 N.m {3.4 kgt m,25 tbf.ftt
BREATHER HOSE
D15Y5, Dl6YB engines:
BANJO AOLT33 N.m (3.4 kgf.rn,25 tbf.ftt
EVAP CONTROLCANISTER HOSE
6-28
(
1 1. Remove the brake booster vacuum hose. fuel returnhose and vacuum hose (see page S_4).
12. Remove the water bypass hose and positive crank_case ventilation (pCV) hose.
016V7 engine:
PCV HOSE
D16Y5, D16Y8 engines:
\a
I
WATER EYPASS
PCV HOSE
Page 178 of 2189

Cylinder Head
Removal (cont'd)
8. Remove the P/S pump lower bracket.
8 x 1.25 mm24 N.m 12.4 kgf.m,17 tbtftl
9.
T SHIELD
10.
P/S PUMP LOWERBRACKET10 x 1.25 mm44 N.m {4.5 kgf.m,33 tbf.frl
Relieve fuel pressure (see section l1).
@ Do not smok6 while working on fuel
system, keep open flam€ or spark away lrom work
ar€a, Drain fuelonly into an approved cortain€r.
Remove the evaporative emission (EVAP) control
canister hose, fuel feed hose and breather hose.
BANJO BOLT33 N.m (3.4 kgl.m.25 lbf.ftl
BREATHERHOSE
WASHERS
6-68
\.
11. Remove the brake booster vacuum hose, fuel return
hose and vacuum hose (see page 5 4).
12. Remove the water bypass hose and positive crankcase
ventilation (PCV) hose.
WATER BYPASSHOSEWATER EYPASSHOSE
Remove the throttle cable and throttle control cable
by loosening the locknut, then slip the cable end out
of the throftle linkage.
NOTE;
. Take care not to bend the cables when removing
them. Always replace any kinked cable with a new
one.
. Adjust the throttle cable when installing (see sec-
tion I I ),. Adjust the throttle control cable when installing(see section 14).
CONTROLCABLE
1a
PCV HOSE
Page 270 of 2189

!
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
Page 279 of 2189
Component Locations
Index (cont'd)
D16Y5, D16Y8 ongine:
RESONATOR
D16Y7 6ngin€:
AIR CLEANER IACLIReplacement, page 11-244
THROTTLE BODY (TBIInspection, page 1 1-247Removal, page 11-248Disassembly, page 11 249
THROTTLE CABLElnspection/Adjustment. page 1 1 -244
Installation, page 11 245
AIR {FIA} CONTROLVAIVE{'99 modeliD16Y8 6ngin6)Testing, page 11,250
POSITIVE CRANKCASEVENTILATION IPCV) VALVEInspection, page 11-266
AIR CLEANER IACLIReplacement, page 11,244
THROTTLE CABITf nspection/Adjustment. page 1 1,244Installation, page 1 1-245
.iBoov ffetInspection, page 11 247Removal, page 11,248Disassembly, page 1 1-249
POSITIVE CRANKCASEVENTILATION IPCVI VALVEInspection, page 1 1-266
1 1-10
RESONATOR
Page 280 of 2189
\-
816A2 engine:
AIR CLEANER (ACLI
Replacement, Page 11-244
THROTTLE BODY {T8)Inspection. page 11-247Removal, page 1 '1-248
Disassembly, page 1 1-249THROTTLE CABLElnspection/Adiustment, page 1 1 -244
lnstallation, page 1 1-245
POSITIVE CRANKCASEVENTILATION IPCVI VALVEInspection, page 1 1-266
11-11
Page 289 of 2189

System Description
Vacuum Connections (cont'd)
D16Y5 engine ('98 modet):
-: Vacuum hose No,*: CW only
(9 POSITIVE CRANKCASE VENTILATION {PCV} VALVE?!J EXHAUST GAS BECIRCULATION (EGR}CONTROLSOLENOIO VALVE'1 ExHAUST GAs RECIRCULATIoN IEGRI VALVE22 EXHAUST GAS RECIRCULATION {EGR} VALVE LIFISENSOR€J EvApoRATtvE EMtsstoN {EvAp} puRGE coNTRoLSOLENOID VALVEq4 PURGE JOINT@ EVAPoRATIVE EMIssIoN {EVAP) coNTRoL CANISTER@ EVAPORATIVE EMISSION IEVAP} BYPASS SOLENOIDVALVE?? EVAPORATIVE EMISSION {EVAP) THREE WAY VALVEITII EVAPORATIVE EMISSION IEVAP} CONTROL CANISTERVENT SHUT VALVEO FUEL TANK PRESSURE sENsoRQlI EVAPORATIVE EMISSION {EVAP}TWO WAY VALVE8' THREE WAY CATALYTIC CONVERTER {TWCI
il) PRIMAFY HEATED OXYGEN SENSOR IPRIMARY HO2S.SENSOR 1)O SECoNDARY HEATEo oxYGEN sENsoR {sEcoNDARYHO2S. SENSOB 2)iq] MANIFOLD ABSOLUTE PRESSURE (MAPI SENSORO ENGINE COOLANT TEMPERATURE IECT) SENSOR5 INTAKE AIR TEMPERATURE {IATI SENSOR! KNOCK SENSOR tKSlO CRANKSHAFT SPEED FLUCTUATIoN {cKF) sENsoFO IDLE AIR coNTRoL {IAc) vALvE99 THROTTLE BODY ITBI@ FUEL INJECToRO FUEL PULSATION DAMPER@ FUEL F -TER@ FUEL PRESSURE REGULAToR[4 FUEL PUMP IFPI(9 FUEL TANK(D FUEL TANK EVAPoRATIVE EMIssIoN IEVAPI VALVEO' AIR CLEANER(D RESoNAToR
11-20
Page 290 of 2189
![HONDA CIVIC 1999 6.G Workshop Manual D16Y5 engine (99 - 00 modelsl:
O) PRIMARY HEATED OXYGEN SENSOR (PBIMARY HO2S,
SENSOR 1)
O SECONDARY HEATEO OXYGEN SENSOR {SECONDARY
HO2S. SENSOR 2)
6] MANIFOLD ABSOLUTE PRESSURE IMAPI SENSOR
rO CruCI HONDA CIVIC 1999 6.G Workshop Manual D16Y5 engine (99 - 00 modelsl:
O) PRIMARY HEATED OXYGEN SENSOR (PBIMARY HO2S,
SENSOR 1)
O SECONDARY HEATEO OXYGEN SENSOR {SECONDARY
HO2S. SENSOR 2)
6] MANIFOLD ABSOLUTE PRESSURE IMAPI SENSOR
rO CruCI](/manual-img/13/6068/w960_6068-289.png)
D16Y5 engine ('99 - 00 modelsl:
O) PRIMARY HEATED OXYGEN SENSOR (PBIMARY HO2S,
SENSOR 1)
O SECONDARY HEATEO OXYGEN SENSOR {SECONDARY
HO2S. SENSOR 2)
6] MANIFOLD ABSOLUTE PRESSURE IMAPI SENSOR
rO CruCIruC COOUruT TEMPERATURE IECTI SENSOR
o rrurlxe ln ETUpERATURE 0AT) SENSOR
.d KNOCK SENSOR (KS}
O CN,NruXSXITT SP:ED FLUCTUATION (CKFI SENSOR
@ rou an corurnoL 0Ac) valvE
O THROTTLE BODY (TB)
@ FUEL INJECTOR
E) FUEL PULSATION OAMPER
t? FUEL FILTER
G) FUEL PRESSURE REGULATOR
OI FUEL PUMP (FP)
Gi FUEL TANK
G) AIR CLEANERfi? RESONATOR
Gl posmvr cnglrcAsE VENTILATION (PCV) VALVE
@ EXHAUST GAS RECIRCULATION IEGR} CONTROL
SOLENOID VALVE6 EXHAUST GAS RECTRCULATION (EGR) VAI-VE
rf exxlust cls nectRcuLATloN IEGR) vALvE LIFT
SENSOR@ EVAPORATIVE EMISSION (EVAPI PURGE CONTNOL
SOLENOID VALVE
O} PURGE JOINTio :vaponanve eutssloN (EVAP) coNTRoL cANlsrER
d rvlponlrtve EmtsstoN tEvAPl BYPASS soL-eNolD
VALVE
6 EVAPORATIVE EMISSION {EVAP) CONIROL CANISTER
FILTER
@ EVAPORATIVE EMISSION (EVAPI CONTROL CANISTER
VENT SHUT VALVEOA FUEL TANK PRESSURE SENSOR
6 :vlponlnvg er,/tlssloN tEvAPl TWO WAY VALVE
6 oNgoano nerueltNc vAPoR REcovERY {onvRl VENT
SHUT VALVE
€!) ONBOARD REFUELING VAPOR RECOVERY (ORVRI VAPOR
RECIBCULATION VALVE
@ THREE WAY CATALYTIC CONVERTER (TWCI
(cont'd)
11-21
L
Page 291 of 2189
System Description
Vacuum Connections (cont'd)
D16Y8 engine ('96 sedan, '97 sedan: KA, KC modelsl:
PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S.SENSOR SECONOARY HEATED OXYGEN SENSOR {SECONDARYHO2S, SENSOR 2lMANIFOLD ABSOLUTE PRESSUBE {MAPI SENSORENGINE COOLANT TEMPERATURE {ECTI SENSORINTAKE AIR TEMPERATUFE IIATI SENSORKNOCK SENSOR IKSICRANKSHAFT SPEED FLUCTUATION {CKFI SENSORIDLE AIR CONTROL IIACI VALVETHROTTLE EODY (T8)FUEL INJECTORFUEL FILTER
FUEL PRESSURE REGULATORFUEL PUMP {FPIFUEL TANKFUEL TANK EVAPORATIVE EMISSION IEVAP} VALVEAIR CLEANERRESONATORPOSITIVE CRANKCASE VENTILATION {PCV} VALVEEVAPORATIVE EMISSION IEVAP) PURGE CONTROLSOLENOID VALVEEVAPORATIVE EMISSION IEVAPI CONTROL CANISTEREVAFORATIVE EMISSION IEVAP} TWO WAY VALVETHREE WAY CATALYTIC CONVERTER (TWC'
{M/T}
i@l: F@i
HiiFl
(A/T)
I ENGINE I
I coor-rruri
i@ i+ il/A. nfi |(Or)l /U[ |)l#t,/,6
0)
t;
-l
@
!o,(t
@@@
@@@(9
@@@(D
@A)@
11-22