2000 HONDA CIVIC coolant temperature

EGT Switch
-f
Testing
Replace the thermostat if it is open at room temperature'
To test a closed thermostat:
1, Suspend the thermostat in a container of water as
shown.
THEBMOMETER
THERMOSTAT
Heat the water, and check the temperature with a
thermometer. Check the temperature at which the
thermostat first opens, and at which it is fully open
CAUTION: Do not let the thermometer touch the
bottom of the hot Gonlainel.
Measure lift height of the thermostat when fully
open.
STANDARD THERMOSTAT
Lift height above 8.0 mm (0.31 inl
Starts opsning: 169' - 176'F (76' - 80'Cl
Fully open: 194'F {90"C1
!'o
10-1 1
Testing
!!@ Romoving the EcT swhch while lhs engine
i!-ot can cause the coolant to sPray out, seriously scald-
ing you. Always lst th€ ongine and rediator cool down
before removing ihe ECT switch.
NOTE: Bleed air from the cooling system after installing
the ECT switch (see Page 10-7)
1. Remove the ECT switch from the thermostat hous-
ing (see Page'10-10).
2. Suspend the ECT switch in a container of water as
shown.
Heat the water, and check the temperature with a
thermometer.
CAUTION: Do not let the thermomoter touch tho
bottom of the hot container'
Measure the resistance between the A and B termi-
nals according to the table.4.
Terminal
Oo"rffi
swlTcH
ON196' - 203"F
(91" - 95'C)o--o
OFF
5" - 15'F {3" - 8'C)
lower than the temPera-
ture when t goes on

815A2 engine:
WATER OUTLETCOVERApply liquid gasket
to mating surface.
6x1.0mm9.8 N.m {1.0 kgl'm,7,2 tbl.ftt
ECT GAUGESENDING UNIT9 N.m (0,9 kgf.m,7 rbf.ft)Apply liquid gasket
to the threads.
rENGINE COOLANTTEMPERATURE (ECT)
SENSOR18 N.m {1.8 kgf.m,13 tbtftl
6x1.0mm12 N.m (1,2 kgd m,
8.7 tbf.ftl
16@
aY@
t"S X 1.0 Mrf WATEN PUMP
iiil:i'iij rnr.., Inspection, pase 10'1'r
8.7 tbf.ftl
\lo
10-13

Gomponent Locations
L
lndex
D16Y5 engine:
{IATISENSORTroubleshooting,
ELECTRICAL LOADDETECTOR IELD) (USA mod6l)Troubleshooting, page 11 179
THROTTLE POSITION ITP)SENSORTroubleshooting, page 1 1-132
MANIFOLD ABSOLUTEPRESSURE IMAPI SENSORTroubleshooting, page 1'l-115
EXHAUST GAS RECIRCULATION
IEGRI VALVE and EXHAUST GAS
RECIRCULATION IEGRI VALVE
LIFT SENSORTroubleshooting, page'l 1-254
INTAKE AIR TEMPERATUR€
IDLE AIR CONTROL (IAC) VALVE
{M/T)Troubleshooting, page 1 1-194
EXHAUST GAS RECIRCULATION{EGRI CONTROL SOLENOIDVALVE ICW)Troubleshooting. page 1 1-254
EVAPORATIVE EMISSIONIEVAPI PUNGE CONTROLSOLENOID VALVETroubf eshooting, Page 1 1'21 1, 243
CRANKSHAFTPOS|TTON/TOP DEAD CENTER/CYLINDERPOS|T|ON
POWER STEERING PRESSURE(PSP) SWITCH (USAI
Troubleshooting, Page 1 1-212
KNoCK SENSoR (Ks)
(cwl
Troubleshooting, Page 1 1'170ICKP/TDC/CYP} SENSOR(Built into the distributor)Troubleshooting, Page 1 1'172
VEHICLE SPEED SENSORTroubleshooting, Page 1 1-176
FLUCTUATION (CKF} SENSOR
Troubleshooting, Page 1 1 -183
ENGINE COOLANTTEMPERATUREIECT) SENSORTroubleshooting, Page 11 128
IDT.ECONTROL IIACI VALVE
{cw)Troubleshooting, Page 11 198
WAY CATALYTICCONVERTER ITWCITroubleshooting, Page 1 1-252PRIMARY TIEATEDSENSOR {PNIMARY HO2SI
tsENsoR 1t {M/TlTroubleshooting, Page'l 1-146
PRIMARY HEATED OXYGENSENSOR (PRIMARY HO2SI
tsENsoR 1l {cw}Troubleshooting, Page 1 1-139
SECONDARY HEATED OXYGENSENSOR {SECONDARY HO2S){SENSOR 2)Troubleshooting, page 11 153
(cont'd)
1 1-3

Component Locations
Index (cont'd)
D16Y8 enginc:
THROTTLE POSITION {TPISENSORTroubleshooting, page 1 1-132
ELECTRICAL LOADDETECTOR IELDI {USAI
INTAKE AIR TEMPERATUREIIATISENSORTroubleshooting, page 1 1,124
MANIFOLO ABSOLUTEPRESSURE {MAPI SENSORTroubleshooting, page 1 1-1 15
IDI.E{A/T)
IDI.E AIR CONTROL IIACI VALVElMtflTroubleshooting, page 1 1-194
Troubleshooting, page 1 1-179EVAPORATIVE EMISSIONIEVAPI PURGE CONTROLSOLENOIO VALVETroubleshooting, page 1 1 27 1. 283CRANKSHAFTPOSTTTON/TOP DEAD CENTER/CYLINDERPOStTtON
POWER STEERING PRESSURE(PSPI SWTTCH |USA)Troubleshooting, page 1 1-212{CKP/TI'C/CYPI SENSOR(Built into the distributor)Troubleshooting. page 1 1-172KNOCK SENSOR IKSITroubleshooting, page 11 170
CRANKSHAFT SPEEDFLUCTUANON ICKFI SENSORTroubleshooting, page 1 1,183
CONTROL {IACI VALVE
ENGINE COOLANTTEMPERATURE{ECTI SENSORTroubleshooting, page 11 128
Troubleshooting, page 11 198
PRIMARY HEATED OXYGEN SENSOR{PRIMARY HO2S} (SENSOR 1l {'96 - 98 modolslTroubleshooting, page 1 1-139
'9!t - 00 modols:'96 - 98 modols:
THREE WAY CATALYNCCONVERTER ITWCITroubl6shooting, page 1 1-252
THREE WAY CATALYNCCONVERTER ITWCITroubleshooting. page 1 1-252
SECONDARY HEATED OXYGENSENSOn(SECONDARY HO2SI (SENSOR 2ITroubleshooting, page 1 1-153
SECONDARY HEATED OXYGENSENSOBISECONDARY HO2S} ISENSOR 2ITroubloshooting, page 1 1-155
PRIMARY HEATEO OXYGEN SENSORIPRIMARY HO2SI ISENSOR 1ITroubleshooting, page 1 1-141
11-4

D16Y7 engine:
ELECTRICAL LOAO
DETECTOR (ELD) IUSA}Troubleshooting, Page 11'179
THROTTLE POSITION ITPISENSOR
MANIFOLD ABSOLUTEPRESSURE (MAPI SENSORTroubleshooting, Page 1 1-1 15r1-132
CRANKSHAFTPOSTTTON/TOP DEAD CENTER/
CYLINDERPOSITION
POWER STEERll\lG PRESSURE
{PSP' SWTTCH {USA)Troubleshooting, Page 11 212
IDLE AIR CONTROL (IAC) VALVE
Troubleshooting, page 1 1-198
Troubleshooting,
VEHICLE SPEED SENSOR (VSSI
Troubleshooting, Page 1 1-176
INTAKE AIR TEMPERATURE
IIATI SENSORTroubleshooting, page 11 124
l
/i
CRANKSHAFT SPEED
{CKP/TDC/CYPI SENSOR(Built into the distributorlTroubleshooting, Page 't 1-172
FLUCTUATION ICKFI SENSORTroubleshooting, Page 1 1-183
PRIMARY HEATED OXYGEN
SENSOR (PRIMARV HO2S)
{SENSOR 1lTroubleshooting, page 1 1'139
ENGINE COOLANTTEMPERATURE(ECTI SENSORTroubleshooting, page 11 128
EVAPOBATIVE EMISSION(EVAPI PURGE CONTROLSOLENOID VALVE
THNEE WAY CATALYTICCONVERTER ITWCITroubleshooting, page 1 1-252
Troubf eshooting, page 1 1 27 1, 283
SECONDARY HEATED OXYGENSENSOR (SECONDARY HO2S)(SENSOR 2lTroubleshooting, Page 1 1-1 53
(cont'd)
,l .ltr| | -r,

Dl6Y5 engine ('96 - 97 modelsl:
o
,6i
@
o@€)@o
@(il(i'
PRIMARY HEATED OXYGEN SENSOR {PRIMARY HO2S,
SENSOR 1'SECONDARY HEATED OXYGEN SENSOR (SECONDARY
HO2S. SENSOR 2l
MANIFOLD ABSOLUTE PRESSURE {MAP) SENSOR
ENGINE COOLANT TEMPERATURE (ECTI SENSOR
INTAKE AIR TEMPERATURE IIAT) SENSOR
KNOCK SENSOR (KS)
CRANKSHAFT SPEED FLUCTUATTON (CKF} SENSOR
IOLE AIR CONTROL (IAC} VALVE
THROTTLE BODY (TBI
FUEL INJECTORFUEL PULSATION DAMPER
FUEL FILTERFUEL PRESSURE REGULATORFUEL PUMP IFPIFUEL TANK
:li Vacuum hose No*: CVT only
FUEL TANK EVAPORATIVE EMISSTON {EVAP) VALVE
AIR CLEANERRESONATORPOSITIVE CRANKCASE VENTIL/ATION IPCVI VALVE
EXHAUST GAS RECIRCULATION IEGR) CONTROL
SOLENOID VALVEEXHAUST GAS RECIRCULATION (EGRI VALVE
EXHAUST GAS RECTRCULATION IEGRI VALVE LIFT
SENSOREVAPORATIVE EMISSION IEVAPI PURGE CONTROL
SOLENOID VALVEEVAPORATIVE EMISSION {EVAP} CONTROL CANISTER
EVAPORATIVE EMISSION {EVAP} TWO WAY VALVE
THREE WAY CATALYTIC CONVERTER (TWCI
{Do(D
@@
@@
@
@@@
(cont'd)
1 1-19
!'a

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

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