1996 HONDA CIVIC fuel filter

D16Y8 engine l'96 coupe.'97 coup6: all models.'97 sodan: KL modol.'98 modell:
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PRIMARY HEATEO OXYGEN SENSOR IPRIMARY HO2S,
SENSOR 1)SECONDARY HEATED OXYGEN SENSOR ISECONDARY
HO2S. SENSOR 2l
MANIFOLD ABSOLUTE PRESSURE IMAPI SENSOR
ENGINE COOLANT TEMPERATURE IECTI SENSOR
INTAKE AIR TEMPERATURE (IATI SENSOR
KNOCK SENSOR {KS)CRANKSHAFT SPEED FLUCTUATION ICKFI SENSOR
IOLE AIR CONTROL {IAC) VALVE
THROTTLE BODY ITBIFUEL INJECTORFUEL FILTERFUELPRESSURE REGULATOR
FUEL PUMP IFPIFUEL TANKFUEL TANK EVAPORATIVE EMISSION IEVAP)VALVE
AIR CLEANERRESONATORPOSITIVE CRANKCASE VENTILATION (PCV) VALVE
EVAPORATIVE EMISSION IEVAPI PURGE CONTROL
SOLENOID VALVEEVAPORATIVE EMISSION {EVAPI CONTROL CANISIER
EVAPORATIVE EMISSION IEVAPI BYPASS SOLENOIO
VALVEEVAPORATIVE EMISSION {EVAPI THREE WAY VALVE
EVAPORATIVE EMISSION IEVAPI CONTROL CANISTER
VENT SHUT VALVEFUEL TANK PRESSUFE SENSOREVAPORATIVE EMISSION IEVAP) TWO WAY VALVE
THREE WAY CATALYTIC CONVERTER ITWCI
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(cont'd)
11-23

System Description
Vacuum Connections (cont'dl
D16Y8 engine l'99 - 00 modetsl:
(]-i PAIMARY HEATEO OXYGEN SENSOR {PRIMARY HO2S,SENSOR 1)..2r SECONOARY HEATEO OXycEN SENSOB ISECONDARYHO2S, SENSOR 2li3) MANIFOLD ABSOLUTE PBESSURE {MAPI SENSORO ENGINE cooLANT TEMPERATURE (ECTI sENsoR(5) INTAKE AIR TEMPERATURE {IAT} sENsoRG] KNOCK SENSOR IKSI?r CRANKSHAFT SPEEo FLUCTUATTON {CKF) SENSOR.O IDLE AIR coNTRoL {IAc)vALvEi-9] THROTTLE BOOY {TB)(O FUEL INJECToRI]'i FUEL FILTER.O FUEL PRESSURE REGULAToR[t FUEL PUMP {FPl.D FUEL TANKil' AIR CLEANERTD RESONATORO FUEL TNJEC oN AtR tFtA) coNTRoL vAt_vE.19 POSITIVE CRANKCASE VENTILATION {PCVI VALVE
.19) EVAPORATIVE EMIssIoN {EVAP) PURGE coNTBoLSOLENOID VALVE€g PURGE JorNTtj EVApoRATtvE EMtsstoN {Evap} coNTRoL cANtsTERC4 EVAPONANVE EMISSION (EVAP) BYPASS SOLENOIDVALVE
?3 EVAPORATIVE EMISSION {EVAP} CONTROL CANISTERFILTERA4 EVAPoBATIVE EMIssIoN (EVAP) coNTRoL CANISTERVENT SHUT VALVEC! FUEL TANK PRESSURE sENsoREO EVAPOBATIVE EMISSION (EVAP) TWO WAY VALVEe? oNBoARD REFUELtiIG vApoR REcovERy {oRvR} VENTSHUT VALVE@ oNBoARD REFUELTNG vapoR REcovERy (oRvR) vapoRRECIRCULATION VALVEiP THREE WAY CATAI.YTIC CONVEBTER {TWCI
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COOLANT
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11-24

|-
DI6YTengine('96mode|.,97coupe:KA,Kcmode|s,,97sedan:KA,KC,KL{Dx}modets,'gThatchback:a||models}:
COOLANT
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PRIMARY HEATED OXYGEN SENSOR (PRIMARY HOzS,
SENSOR 1)SECONDARY HEATED OXYGEN SENSOR {SECONDARY
HOzS, SENSOR 2)
MANIFOLD AESOI-UTE PRESSURE IMAP) SENSOR
ENGINE COOLANT TEMPERATURE IECT) SENSOR
INTAKE AIR TEMPERATURE (IAT} SENSOR
CRANKSHAFT SPEED FLUCTUATION (CKF) SENSOR
IDLE AIR CONTROL (IACI VALVE
THROTTLE BOOY (TB)
FUEL INJECTORFUEL FILTERFUEL PRESSURE REGULATOR
FUEL PUMP IFPIFUEL TANKFUEL TANK EVAPORATIVE EMISSION (EVAPI VALVE
AIR CLEANERRESONATORPOSITIVE CRANKCASE VENTILTATION IPCVI VALVE
EVAPORATIVE EMISSION (EVAP} PURGE CONTROL
SOLENOID VALVEEVAPORATIVE EMISSION (EVAP) CONTROL CANISTER
EVAPORATIVE EMISSION IEVAPI TWO WAY VALVE
THREE WAY CATALYTIC CONVERTER (TWCI
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(cont'd)
11-25

Dl6Y7 engins ('99 - 00 modelsl:
PRIMARY HEATED OXYGEN SENSOR {PRIMARY HO2S,
SENSOR 1)iiconoanv neareo oxYGEN sENsoR ISECoNDARY
HO2S, 9ENSOR 2)MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
ENGINE COOLANT TEMPERATURE (ECT} SENSOR
INTAKE AIR TEMPERATURE (IATI SENSOR
CRANKSHAFT SPEED FLUCTUATION ICKFI SENSOR
IOLE AIR CONTROL (IAC} VALVE
THROTTLE BODY (TBl
FUEL INJECTORFUEL FILTERFUEL PRESSURE REGULATOR
FUEL PUMP (FP)
FUEL TANKAIR CLEANERRESONATOR
6d POSITIVE CRANKCASE VENTILATION (PCV) VALVE
6 rvapoamve eutssloN tEvAP) PURGE coNTRoL
SOLENOID VALVECO PURGE JOINT6 evlponnnve eutssloN (EvAPl coNTRoL cANlsrER
i evlponnnve eussloN {EVAP} BYPASS solrNolD
VALVE
6) EVAPORATIVE EMISSION (EVAPI CONTROL CANISTEN
FILTER
@ EVAPORATIVE EMISSTON (EVAP) CONTROL CANISTER
VENT SHUI VALVEA FUEL TANK PRESSURE SENSON
d rvlpoamve emtsstoN tEvAPl rwo wAY vALvE
6 orueonno nerueLING vAPoR REcovERY loRvnl vENT
SHUT VALVE
€) ongolno neruellNc VAPOR RECOVERY {ORVR) VAPOR
RECIRCULATION VALVE
€) THREE WAY CATALYTIC CONVERTER (TWC)
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(cont'd)
11-27

I
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System Description
Vacuum Connections (cont'd)
816A2 engine:
@ EvApoRATtvE EMtsstoN tEvAp) puRGE coNTRoLSOLENOID VALVE@ PURGE JoINT€t EvApoRATtvE EMtsstoN (EVApt coNTRoL caNtsTERQA EVAPORATIVE EMISSION (EVAP) BYPASS SOLENOIDVALVE
@ EVApoRATtvE EMtsstoN lEvApl coNTRoL caNtsrERFILTER@ EvApoRATtvE EMtsstoN {EvApt coNrRoL cANtsrERVENT SHUT VALVE@ FUEL TANK PRESSURE sENsoRGI EVAPORATIVE EMISSION (EVAP} TWO WAY VALVE@ ONBOARD REFUETING VAPOR RECOVERY {ORVR} VENTSHUT VALVE@ oNBoAnD REFUELING vApoR REcovERy (oRvRl vApoR. RECIRCULATION VALVE(c} THREE WAY CATALYTIC CONVERTER {TWCI
(' PRIMARY HEATED OXYGEN SENSOR IPRIMARY HO2S.SENSOR 1l.?) SECONDARY HEATED OXYGEN SENSOR {SECONDARYHO2S, SENSOR 2)13] MANIFOLD ABSoLUTE PRESSURE (MAP) sENsoBi' ENGINE COOLANT TEMPERATURE IECT) SENSORO INTAKE AIR TEMPERATURE ITATI SENSORi6l KNOCK SENSOR {KS}O oRANKSHAFT SPEED FLUCTUATIoN {cKF} sENsoR@ IDLE AIR coNTRoL (IAc} VALVE€) THRoTTLE BoDy trB|(D FUEL INJECToRO FUEL PULSATIoN DAMPER[D FUEL FILTER@ FUEL PRESSURE REGULAToR!I FUEL PUMP IFP)f,' FUEL TANK(iD ArR CLEANERt' RESONAToR'.1]i POSITIVE cRANKcAsE VENTILATIoN {Pcv} VALVE
11-28

PGM-FI System
Fuel Supply System
D017-il Th""""ntool indicates Diagnostic Troubte Code {DTC) p0171;Thefuet system istoo lean.
1P0172 | fne scan tool indicates Dlagnostic Trouble Code (DTC) P0172:Thefuel system istoo rich.
Description
By monitoring the Long Term Fuel Trim, long term malfunctions in the fuel system will be detected.lf a malfunction has been detected during two consecutive trips, the MIL will come on and DTC P0171 and/or P0172 will bestored.
NOTE: lf some of the DTCS listed below are stored at the same time as DTC P0171 andlot P0172, ltouhleshoot those DTCSfirst. then recheck for DTC P0l7l andlot P0172.
P0106-8, P1128*3. *5, P1129*3 *5 MAP Sensor
P0135; Primary HO2S Heater
P0137. P0138: Secondary HO2S
P0'141: Secondary HO2S Heater
P0401: EGR Flow Insufficient*1
P0441: EVAP System Insufficient Purge Flow*6
P1259: VTEC System*,
P1491:EGR Valve Lift Insufficient*r
P1498: EGR Valve Lift Sensor Hjgh Voltage*r
*r: D16Y5 engines*': Dl6Y5, D16Y8, 81642 engine*3: '97 models*a:'96 modelsf 5: '98 - 00 models*6: '96 D16Y5 engine,'96 D16Y7 engine,'96 D16Y8 engine (sedan),'97 D16y5 engine,,97 D16y7 engine (coupe: KA, KC mo+els, sedan KA. KC, KL (DX) models. hatchback; all models),'97 D16Y8 engine (sedan: KA, KC models)
Possible Cause
DTC P0'171
loo lean
DTC P0172
too rach
Fuel Pump insuff icient f lovpressure
Fuel Feed Line clogged, leaking
Fuel Pressure Regulator stuck open
Fuel Filter clogged
Fuel Injector clogged, air inclusion
Gasoline doesn't meet Owner's Manual spec.
Primary HO2S (Sensor 1) deteriorated
MAP Sensor range/performance*.
EGR System malfunction (too much flow)*1
Valve Clearance
Exhaust leak
Fuel Pressure Regulator clogged, stuck closed
Fuel Return Pipe clogged
Fuel Injector leaking
Gasoline doesn't meet Owner's Manual spec.Primary HO2S (Sensor 1) deteriorated
MAP Sensor range/performance*a
EGR System insufficient flow*1
EVAP Purge Control Solenoid Valve leaking, stuck opened
Valve Clearance
11-164

PGM-FI System
Random Misfire
lFoioo l*u o, [FTioo l*' *' and
The scan tool indicates Diagnostic Trouble Code (DTC)
P0300*5 or P1300*3 *1 and some of P0301 - P0304:Random misfire.Description
Misfire detection is accomplished by monitoring the crankshaft speed with the crankshaft speed fluctuation (CKF) sensorwhich is attached to the crankshaft.
lf misfiring strong enough to damage the catalyst is detected. the MIL will blink during the time of its occurrence, and DTCP0300*5 or P1300*3'*' and some of DTCs P0301 through P0304 will be stored. Then, after misfire has ceased, the MIL willcome on.
lf misfiring that increases emissions is detected during two consecutive driving cycles, the MIL will come on, and DTCP0300*5 or P1300*3 *a and some of DTCS P0301 through P0304 will be stored.NOTE: lf some of the DTCS listed below are stored at the same time as a misfire DTC. troubleshoot those DTCS first, thenrecheck for the misfire DTC.
P0106*4. P0107. P0108, P1128*3 *5, Pl129*3 *5; MAP sensorP0131. P0132: HO2S
P0171, P0112i Fuel metering
P0401, P 1491, P1498: EGR svstem*1P0505: ldle Control SystemP1253: VTEC System*,P1361, P1362: TDC sensorP1381, Pl382: CYP sensorP1508: IAC valve
Possible Cause. Fuel pump insufficient fuel pressure, amount of flow. Fuel line clogging, blockage, leakage. Fuel filter clogging. Fuel pressure regulator stuck open. EGR system malfunction*1. Distributormalfunction. lgnition coil wire open. leakage *l: D16Y5 engine. lgnition control module malfunction *2: D16Y5, D16Y8, Bt6A2 engine. MAP sensor range/performance, poor response*r *3: '97 models. Valves carbon deposit *4;'96 models. Compression low *5: '98 - 00 models. IAC valve malfunctionr.. VTEC system malfunction*,. Fuel does not meet Owner's Manual spec., lackoffuel. HO2S. HO2S circuit
Troubleshooting
By test-driving, determine the conditions during which misfire occurs, Depending on these conditions, test in the orderdescribed in the table below.
Possible
- --^ ---
rage
causeEGR*1
system
Crankshaft
position (CKP)
sensor
Fuel
pressure
Distributor and
lgnition wirestcMClearance
tAc
ValveMAP
sensor
section 611-230,
231section 23section 23section 611-19411
Only low rpm and
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Only high rpm and
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NOTE: lf misfire doesn't recur, some possible causes are fuel that doesn't meet owne/s manualspec, lack of fuel, carbon deposits on spark plug, etc.
1 1-1 66
I
P0304

Fuel Supply System
Fuel Lines
NoTE: Check fuel system lines, hoses, fuel filter, and other components lor damage, leaks and deterioration, and replaceif necessary.
(2.2 kgt.m, 16lbf.ft)(D16Y5 engine: 28 N.m2.8 kgtm, 21 lbf ft)
The illustrationshows'99 00 models.
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11-224