1998 HONDA CIVIC fuel system

c l16cl10c115
Different wires with the same color have b6en given a number suffix to distinguish them (for example, YEUBLKl
and YEUBLK'are not the same).
O: Related to Fuel and Emissions System.
c123
ffi
c11a
@
cl20
..+, 1
l+'.1'+:l
c109
r'ft]
flofr-N _-l
ItIYEUBLK, IIEIBLvBLU' I
c141
ffi
16T Lr cRN^/v-H;l
161-BrxtEL-__l
c11E tA/Tl
l- l,l
lOlGBN, I
f6lBr-r,--l
clr7
F1ftr
@fBLK-_-lI a BLKTYEL I
|ol-Balro/Hl -l
c121lAtfl
l- lrl
McnN/BLK' I
f4tEr-- __-l
c125
rfrr
Etr
I t lwHri REo' IItrIRED/YEL, _-l
blBLK Ea -l
ftl BLK^tHi'l
- Connector with male terminals (double outlinel: View from terminal side
- Connector with female terminals (single outlin€): View from wire side
NOTE: .
a
a(cont'd)
11-71
o8TK?YEL.!lGBN/8TKI2BLICYELoGffN/8TK1BLK/YEL@GNN/aLK?
(tBLfiELoGRN/BLKBLK/YEI12BLKJ^/EL!3GRN/BLX'8LK/YELGRN/BLK'
c128 (A/Tl
_El-
I'l ,l
IOIBLUryEI' I
161-crNalrHr' -l
(xlsarr
Ftr.T
l6ELffiHr-]
tr18!( -___-l
lglcRN/REp I
c12t l[lTl
ffi
EIWHF
_l
l(?lREp, I
c126 lA/Tl
fr
EIwHI-__-ll€) lFEp5 I
c352c351

c122
A,g
l-iln'eo*r,vHr__-ll[lcRNiBLitl]l
cl17
r'trTl
16lBLK,-__-llO BLX,\,E[ |
16l Btu/wil-
c112
ffi
Cliro
o
C1'11
ffi
l6l-ciN/YEL' _-l
NOTE: . Different wires with the same color have been given a number suffix to distinguish them (for example, YEUBLK1
and YEUBLK'are not the same).
O: Related to Fuel and Emissions System,- Connector with male terminals (double outline): View from terminal side
- Connector with female terminals (single outline): View from wire side
c'54*1
frl zlsl
fflErKwH---llOlBLr I
f6lGrrunEp -l
11-75

v1s8l7l6le t0r l!21
' S€cuitAr.h Sysi.m
cL5lwithod cruir. cort?oll
c510 ta/T)
;--F--trt2l
w
l-T - --l
l. - I
elz5{with crui* codrol)
r'ffitr
13 rl
lElwHT"cRN I
YELf,ED/BLK.!
- Connector with male terminals (double outline): View from terminal side
- Connector with female terminals (single outline): View from wire side
Different wires with the same cotor have been given a number suffix to distinguish them (for example, YEUBLKl
and YEUBLK'are not the same).
O; Related to Fuel and Emissions System
Dt!
t-
NOTE: o
a
a(cont'd)
11-77
t213t5
5
14i!aL(LTATU
1
Et0t1,/ ./ie /1Al,/ 20
2a
9t0l213111 /l61718
!t
t1t
23I7a9
101112t3/lr5l/18 t9
12
YEL
YEL3LK2

System Descriptions
System Connectors lFuel Pump]
('9!, - 00 models 6xcept Dl6Y5 ongino with M/T)
\(
I
c568
ffi
c565
E
c792
Different wires with the same color have been given a number suffix to distinguish them (for example, YEUBLKIand YEVBLK, are not the same).
O: Related to Fuel and Emissions System.- Connector with male terminals (double outline): View from terminal side- Connector with female terminals (single outline): View from wire side
c793
fr
NOTE: o
a
a
1 1-80

Troubleshooting
Troubleshooting Procedures (cont,dl
CAUTION:
. Punqturing ihe insulation on a wirs can cause poor or intermiftent electricar connections.I Bring the test€r probe into contacl with the terminatlrom the terminal side of wire harnesg conncctors in the gngin€compartment. For temale connectors, iust touch lightly with the tester probe and do not inse.t the probe.
\I
RUBBER SEAL
Other Probable Causes for an engine that will not start:- Compression- Starting system- lntake air leakage - Overheating- Engine locked up - Battery- Timing belt
TESTER PROBE
Symptom Chart
Listed below are symptoms and probable causes for problems that Do NoT cause the Malfunction indicator Lamp (MlL) tocome on. lfthe MIL was reported on, go to page 11_81.Troubleshoot each probabre cause in the order risted (from reft to right) untir the symptom is eriminated.The probable cause and troubleshooting page reference can be found berow.
L
*: '99 - 00 models
TERMINAL
SYMPTOMPROBABLE CAUSE
4,2,3, 5,20, 14, 1
2, 4, 11, 16, 13, 't9
?, s^6. 16
1,8,10.9
Engine will not sta rt
Hard starting
Cold fast idle too low
Cold fast idle too high
ldle speed fluctuates7,8, 10.9
Troubleshoot for misfire on pages l1-166, 167Misfire or rough running
LOW power
E"g|* "t"lb
2,9, 10, 12, 11, 16, 't8,20
2,4,11,7,20,8,5,15
't9, 21
1r, ,1
Difficult to refuel*
Fuel overflows during refueling*
11-84

Probable Cause List lFor th€ DTC Chart, see page 11-971*: '99 - 00 models
Probable GausePageSystem
11 1-107Engine Control Module (ECM)/Powertrain Control Module (l'uM)
PGM-Fl main relay
l^^iti^n cwetam
211-230,231
3't't-237
Section 23
51'1-172,183Crankshaft Position/fop Dead Center/Cylinder Fosltlon sensor clrculr' Lr\F selrsor
circuit
Intake Air Temperature (lAT) sensor circuit
ldle Air Control (lAC) Valve
ldle speed adjustment
Throttle bodY
Throftle cable
Manifold Absolute Pressure (MAP) sensor
Throftle Position (TP) sensor
Barometric pressure (BARO) senso'
Mf g"a, po"ition signal (see page 11-216) or clutch switch signal
Brake switch signal
Air Cleaner
lntake air pipe
Three Way Catalytic Converter (TWC)
Evaporative emission (EVAP) control
Contaminated fuel
ORVR vent shut valvs
't1-124
71 1-194
I11-220 - 223
11-241
'1011-244
1111-115
1211-132
13't1-178
14Section 14. 11-218
1511-210
16't1-244
1811-252
1911-261
20
21*11-296
(cont'd)
11-85

Diagnostic Trouble Code (DTCI Chart
connector is connecteda1: Dl6Y5 engine (CVT)*2: Except D16Y5 engine (M/T)*14:'97 model*15:'96 model*16: '98 model
(cont'd)
11-97
DTC
{MlL indication*lDelection liemProbable CausePage
Manifold Absolute
Pressure Circuit
Range/Performance Problem
. Vacuu m connection. MAP sensor11115
P0107 (3)
Manifold Absolute
Pressure Circuit
Low Input
Open or short in MAP sensor circuit
MAP sensor
ECMiPCM
TCM*1
11't1'l
P0108 (3)Manifold Absolute
Pressure Circuit
High Input
Open in MAP sensor circuit
MAP sensor
ECtvt/PCM
't 1 121
P0.111*14. *15 (10)
lntake Air Temperature
Circuit
Range/Performance Problem
. IAT sensor11-124
PO112 {10}
Intake Air
Temperature Circuit
Low Input
Short in IAT sensor circuit
IAT sensor
ECMiPCM
11-125
P0113 (10)lntake Air
Temperature Circuit
High Input
Open in IAT sensor circuit
IAT sensor
ECM/PCM
't1-126
P0116 (86)Engine Coolant
Temperature Circuit
Range/Performance Problem
. ECT sensor. Cooling system11-124
PO't't7 {6)
Engine Coolant
Temperature Circuit
Low Input
Short in ECT sensor circuit
ECT sensor
ECM/PCM
11-129
P0118 (6)Engine Coolant
Temperature Circuit
High lnput
Open in ECT sensor circuit
ECT sensor
ECM/PCM
11-130
?0122 t1l
Throttle Position
CircuitLow Input
Open or short in TP sensor circuit
TP sensorECM/PCM
TCM*1
11-132
P0123 (7)Throttle Position
Circuit
High Input
Open in TP sensor circuit
TP sensor
ECM/PClvl
11-136
P0131*' (1)
Primary Heated Oxygen Sensor
Circuit Low Voltage(Sensor 1)
Short in Primary HO2S (Sensorl ) circuit
Primary HO2S {Sensor 1)
Fuel supply system
ECM/PCM
1 1-139
P0132*' ('r)
Primary Heated Oxygen Sensor
Circuit High Voltage(Sensor 1)
Open in Primary HO2S {Sensor 1} circuit
Primary HO2S (Sensor 1)
ECM/PCM
1 1- 143
P0133*' (61)
Primary Heated Oxygen Sensor
Slow Response(Sensor 1)
. Primary HO2S (Sensorl). Exhaust system11-145
P0135*? (41)
Primary Heated Oxygen
Sensor Heater
Circuit Malfunction(Sensor 1)
. Open or short in Primary HO2S(Sensor 1) heater circuit. ECM11-151
*: The DTCS in parenthesis will be indicated by the blinking of the Malfunction Indicator Lamp (MlL) when the SCS service
! ta

Troubleshooting
DTClMlL indicationlDatection hsmProbablo CausePage
P0137(63)Secondary Heated Oxygen SensorCircuit Low Voltage(Sensor 2)
Short in Secondary HO2S lSensor 2) circuitSecondary H02S {Sensor 2)ECM/PCI\41 1-153
P0r38 {63)Secondary Heated Oxygen SensorCircuit High Voltage(Sensor 2)
Open in Secondary HO2S (Sensor 2) circuitSecondary HO2S (Sensor 2)EC[I/PCM11-154
P0'139 (63)Secondary Heated Orygen SensorSlow Response(Sensor 2)
Secondary H02S lSensor 2)1l-156
P0141 (65)
Secondary Heated Oxygen SensorHeaterCircuit Malfunction(Sensor 2)
. Open or short in Secondary HO2S (Sensor2) heater circuit. ECM/PCM11-157
P0171 (45)
System Too LeanFuel supply systemPrimary HO2S (Sensor 1)MAP sensorContaminated fuelValve clearanceExhaust leakage
11,164
P0172 (45)
System Too RichFuel supply systemPrimary HO2S (sensor l)MAP sensorContaminated fuelValve clearance
11-164
P0300*16' }l?
andsome ofPo3o1 /r'' \P0302 l72lP0303 l73lP0304 \7 4l
Random Misfirelgnition systemFuel supply systemMAP sensorEGR systemIAC valveContaminated fuelLack of fuel
r1-r66
P0301P0302P0303P0304
/rt\172ll73l\7 4l
- Cylinder 1- Cylinder 2- Cylinder 3- Cylinder 4Misfire Detected
Fuel InjectorFuel Injector circuitlgnition systemLow compressionValve clearance
11 167
P0325*3 (23)Knock Sensor (KS) CircuitMalfunctionOpen or short in Knock Sensor (KS) circuitKnock Sensor {KS)ECM/FCtvl11-170
P0335(4)Crankshaft PositionSensor CircuitMalfunction
Crankshaft Position SensorCrankshaft Position Sensor circuitECM/PCM11-172
P0336(4)Crankshaft PositionSensorRange/Performance
. Crankshaft Position Sensor. Timing belt skipped teeth11-172
P040'r*r (80)Exhaust GasRecirculationInsufficient Flow Detected
' EGR valve. EGR line
P0420(67)Catalyst SystemEfficiency BelowThreshold
. Th.ee Way Catalytic converter. Secondary HO2S11 253
Diagnostic Trouble Code (DTCI Chat (cont'dl
*3: D16Y5 engine (CVT), D16Y8 engine and B1642 engine*4: D'16Y5 engine*16: '98 model+17: '99 - 00 models
,Jla
1 1-98