1996 HONDA CIVIC D16y8 intake manifold

Intake Air System
\JSystem DescriPtion
The system supp|ies air for a|| engine needs' |t consists of the intake air pipe' Air C|eaner (ACL}, intake air duct, Thrott|e
Body (TB), ldle Air control (lAc) valve and intake manifold. A resonator in the intake air pipe provides additional silencing
as air is drawn into the system.
D16Y5, D16Y8, 816A2 engine {M/Tl
YEL/ - From PGM-FIaLK - MA|N RELAY
BLK/BLU
-- ORN
INTAKEAIRDUCT
IROTARYIIAC VALVE
Iaru
ENGINECOOLANT
BLK/
INTAKEAIR DUCT
I
D16Y5 engine (CVT), D16Y8 engine (A/T)' f'ttlxr ,tla"tpoto
D16Y7 engine:
{ROTARY)IAC VALVE
VARIOUSSENSORS
INTAKEAIRPIPE
tr
RESONATOR
!r,
IAC VALVE
BLK
11-243

Emission Control System
Positive Crankcase Ventilation IPCVI System
Descripiion
The Positive Crankcase Ventilation (PCV) system is
designed to prevent blow-by gas from escaping to the
atmosphere. The PCV valve contains a spring-loaded
plunger. When the engine starts, the plunger in the PCV
valve is lifted in proportion to intake manifold vacuum
and the blow-by gas is drawn directly into the intake
manifold.
D15Y5, D16Y8, 816A2 ongins:
BREATHERHOSE
Dl6'|11 6ngin6:
-: aLOW-BY VAPOR-: FnESH AIF
11-266
tJ
lrcpection
1. Check the PCV hoses and connections for leaks and
clogging.
2. At idle, make sure there is a clicking sound from the
PCV valve when the hose between the PCV valve
and the intake manifold is lightly pinched with your
fingers or pliers,
D16Y5, D16Y8 ongins:
BREATHERHOSE
PCV VALVE
Gently pinch here.
Bl6A2 engins:VALVE
lf there is no clicking sound, check the PCV valve
grommet for cracks and damage. If the grommet is
OK, replace the PCV valve and recheck.
PCV

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)

Gonnector ldentification and Wire Harness Routing
Engine Wire Harness (D16Y5, Dl6Yg engines): ,99 - 00 models
Connectot or
Terminal
Number ot
CavitiesLocationConn€cts toNotes
c'101cl02c103c104c 104c10s
c107c 108c'r09c110c111cl12c113cl14c l15c116cl17c118c119c120cl20c121
c122c123c123cl23cl24c124c125
c127c12Ac129c 130c131cl32c133c 134c135c137c138c 139c 140c142c143c144cl44c145c146c147
103,]
322223332221414322'10
8,l
2484224222120
32
2212223
282
No. 1 luel injector INo.2 fuel injectorNo.3 fuel injector ]No. 4 fuel injector iIAC valve I anThrottle position lTP) sensorManifold absolute pressure {MAP) sensor IIntake air temperature (lAT) sensor IPower steering pressure (PSP)switch USAEVAP purge control solenoid valve ]
Main wire harness 1C303)Crankshaft speed fluctuation (CKF) sensorEngine oil pressure switchAlternatorAlternator
Left side ot engine compartmentlvliddle of engineMiddle of engineLeft side ot engine compartmentLeft side of engine compartmentMiddle of engineMiddle ot engineMiddle of engineMiddle of engineMiddle oI engineMiddle of engineMiddle of engineMiddle of engineMiddle of engineNliddle of engineMiddle of engineMiddle of engineMiddle of engineRight side of engine compartmentMiddle of engineMiddle of engineN4iddle of engineMiddle of engine
Middle of engineMiddle ot engineMiddle ot engineMiddlo of engineMiddle of engineMiddle ot enginelrliddle of engineMiddle of engineMiddle oI engineMiddle ot engineRight side of engine compartmenlBehind right kick panelUnder right side of dashBehind right kick panelBehind right kick panelBehind righr kick panelBehind right kick panelMiddle ot engine[,liddle of engineN4iddle of engineMiddle of engineMiddle oI engineLeft side of engine compartmentMiddle of engineMiddle of engineRight side ol engine compartmentRight side of engine companmentRight side of engine compartment
USACanada
Junction connectorJUnct|On COnnectorVehicle speed sensor lVSS)Countershaft speed sensorEngine coolant temperature {ECT} switch ADistributorDistributorEngine coolant temperature (ECT) sendingunitEngine coolant temperature (ECT) sensorPrimary H02S (sensor 1)Primary HO2S (sensor 1)Primary HO2S lsensor 1)Back-up light switchLock'!p control solenoid valveSecondary HO2S (sensor 2)Mainshaft speed sensorLinear solenoid valveShift control solenoid valveStarter solenoidJunction connectorMain wire harness (C446)ECM/PCMECM/PCMECM/PCMPCtvtKnock sensor (KS)IAC valveVTEC solenoid valveVTEC pressure switchEGR control solenoid valveSecondary gear shaft speed sensorEGR valveEGR valveDrive pulley speed sensorSolenoid connector (CVT)Driven pulley speed sensor
*' (A/TI
*1 (CVT)*, (M/T)
Mfia (A/Tl
" (A,/T)., (4,/r)-' {AlrJ
*1 (M/T)
tvliT
*1 (CVT)*, (cvT)*' (cw)*1 (MiT)*1 {CVT)*1 {CVT)*, (cvr)
T101T102Left side of engine companmentRight side ot engine companmentAlternatorUnder'hood fuse/relay boxG 101Middle of englne IEngine ground, via engine wire harness*1: 016Y5*2: D16Y8*3: Dl6Y5
engineengine(CW), D16Y8 engines
23-14

-39. Cl16
- Gray- Rear ol engine, below intake manifold- Engine wire harness junction connector
41. C433
- Gray- Below center console- Connects main wire harness to A'/T gear position
switch pigtail
i-'-j-----lr-:-_-::::^-_---'18 BLK (G101)
s BLK (G101)
10 BLK (G101)
11 BLK (G101)
12 BLK (G101)
13 USA: BLK (G101)
14 BLK (G101)
L___-----J
2 *1: YEL/BLK*2iYEURED
(PGM-Fr)
3 *1: YEUBLK
(PGl\4-Fr)
4 *l:YEUBLK*2T YEURED(PGr\4-F|)
5 *1i YEL/BLK*2: YEURED(PGM-Fr)
6 *1: YEUBLK*2: YEURED(PGM Fr)
7 *1: YEUBLK*2: YEURED
1 BLK (Cruise conlrol)
2 l\,1ale - LT GRNFemale(Not used)
3 Male - YELFemale - YEURED(Back-up lights)
4 GRN/BLK(Back-up lights)
5 f,rale - GRN/YELFemale - BLU(A,/T controls)
6 l\.4ale - GRN/BLUFemale GRN(A,/T controls)
7 Male - GRN/ORNFemale - YEL(A/T conkols)
9 PNK (Cruise control)
1O BLI(WHT(Starting system)
11 BLI(RED(Starting system)
12 Male - GRNIVHTFemale - BLK/BLU(A,/T controls)
13 Male - GRN/REDFemale - WHT(A,/T controls)
14 Male - GRNFemale - RED(A,/T controls)
L_i9yj'L____i
'1: Allexcept GX'2: GX
Terminals grouped together areconnected by the same bus bar.
40. c401
- Gray- Behind left kick panel- Connects main wire harness to floor wire harness
All '96-'98 Models and '99100 GX Models:
1 *1: BLKWHT (PGM-F|)*2:YEL/BLU (PGl\4'Fl)
2 HatchbackiLT GRN/BLK(Rear wiper/washer).2: BLU/YEL {PGM-Fl)
3 Hatchback: LT GRN(Rear wiper).2: GRN/BLK (PGM'Fl)
4 *1:YEUBLU (PGM Fl)*2: GRN/VEL (PGl,I-Fl)
5 *1: GRN/BLK (PGM-FI)*2: WHT/RED (PGl\4-Fl)
*1= D16Y5iAll '98 modelsD16Y7r '97 California Coupe and Sedan LX, all '98 models
D16Y8: All '96-97 Coupes, '97 Calilornia Sedans, all '98 models
*2= GX models
'99-'00 Models except Gx:
6 BED/BLU(Seat belt reminder)
7 WHT/GRN (Fuse 51)
8 1.: LT GRN (PGM'F|)
I 1.i BLU (PGl\.4-Fl)
10 GRN (lgnition keyremrnoer)
11 LT GRN/RED(Ceiling light)
12 GRN/BLK(Back-up lights)
13 GFN,TVHT (Brake lights)
14 Except GX: YEUGBN
{PGM-Fr)
1 GRN/ORN(Power door locks)
2 BLK,ryVHT (PGM-Fl)
3 Coupe/SedaniGRNA/VHT(Power door locks)Hatchback:LT GRN/BLK (Rear
wiper)
4 Coupe/Sedan: BLU/BLK(Security system)Hatchback:LT GRN (Rear wipeo
5 YEUBLU (PGl\4-Fl)
6 GRN/BLK (PGM,FD
7 RED/BLU(Seat belt reminder)
8 *3: WHT/RED(Power door locks)
9 *3: BLU/RED(Power door locks)
10 '3: BLU^VHT(Power door locks)
11 l\.4ale -
Female - WHT/GRN(Fuse 51)
12 LT GRN (PGM-FD
13 BLU (PGr\4 Fr)
14 GRN(lgnition key reminder)
15 LT GRN/RED(Ceiling light)
16 GRN/BLK(Back-up lights)
17 GRN,ryVHT(Brake lights)
18 YEUGRN (PGI\4.FD
19 *3: YEURED(Power door locks)
20 Canada: BLU/YEL(Power door locks)-
*3= USA HX, LX, EX OX-V Si
202-11