fuel pump HONDA INTEGRA 1998 4.G Owner's Manual

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Fuel Supply System
Fuel Filter
Replacement
Do not smoke while working on fuel system. Koop
open flame away from your work atea.
While replacing the fuel filter, be qaretul to keep a
sate distanco between battery terminals and any
tools.
The fuel filter should be replaced whenever the fuel
pressure drops below the specified value I27o - 32O kPa,
2.8 - 3.3 kgf/cm', 40 - 47 psi (B18C'1, B l8C5 enginesi 320- 370 kPa (3.3 - 3.8 kgtcm',47 - 54 psi) with the fuel
pressure regulator vacuum hose disconnected and
pinchedl aiter making sure that the tuel pump and the
fuel pressure regulator are OK.
Place a shop towel under and around the fuelfilter.
Relieve fuel pressure {see page 11-1'18}.
Support the fuel filter with a wrench, as shown,
then remove the 12 mm banjo bolt and the tuel feed
pipe lrom the fuelfilter.
Remove the fuel filter clamp and fuel filter.
lnstall the new fuel filter in the reverse order of
removal, and note these items:
. When assembling, use new washers as shown.
. Clean the tlared joint of high pressure hoses
thoroughly before reconnecting them.
\,,
9.8 N.m {1.0 kgf.m,7.2 tbf.frl
WRENCH
12 mm BANJO BOLT33 N.m 13.4 kgf.m. 25 lbl.ftl
37 N.m (3.8 kgf.m,27 lbf.ft)

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1.
Testing
!@ Do not smoke during tho t€st. Keep open
flame away from your work area.
lf you suspect a problem with the fuel pump, check that
the fuel pump actually runs; when it is ON, you will hear
some noise it you hold your ear to the fuel fill pon with
the fuel fill cap removed. The fuel pump should run for
two seconds, when ignition switch is first turned on. lf
the fuel pump does not make noise, check as followsl
Remove the rear seat (see section 20).
Remove the access panel.
Disconnect the 2P connector from the tuel pump.
CAUTION: Be sure to turn the ignition switch OFF
before disconnecting the wires,
Connect the PGM-Fl main relay 7P connector termi-
nals No. 4 and No. 5 with a jumper wire.
PGM-FI MAIN RELAY CONNECTOR {C,14:}l
2.
3.
4.
5.
FUEL PUMP
{YEL/GRNI
IGN, 1
IYEL/GRN)
JUMPER WIRE
Wire side of female terminals
Check that battery voltage is available between the
fuel unit sub-harness connector terminal No. 2 and
body ground when the ignition switch is turned ON(

).
Wire side of female terminals
lf battery voltage is available, check the fuel
pump ground. lf the ground is OK. replace the
fuel pump.
lf there is no voltage, check the wire harness (see
page 11'125).
FUEL PUMPCoNNECTOR 1C510)
L]l
lrl-r
6l FUEL PUMP
\:/ (YEL/GRNI
4.
Replacemont
@ Do not smoke while working on tuel sys-
tem, Keep open flames away trom your work area.
'1. Remove the rear seat (see section 20) (Hatchbackl
Remove the spare tire lid and the protective cover),
2. Remove the access panel.
3. Disconnect the 2P connector trom the fuel oumD.
Remove the fuel pump mounting nuts.
Remove the fuel pump from the fueltank.
install parts in the reverse order of removal.
ACCESSPANEL
5.9 N.m(0.6 kgl.m,4.3 tbtft)
5.
Replace.

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Fuel Supply System
PGM-Fl Main Relay
Description
The PGM Fl main relav actuallv contains two individual
relavs. This relav is located at the left side of the cowl.
One relay is energized whenever the ignition is on which
supplies the battery voltage to the ECM, power to the
tuel injectors, and power tor the second relay. The second
relay is energized for two seconds when the ignition is
switched on, and when the engine is running, to supply
power to the fuel pump.
PGM-FIMAIN RELAY
11-124
FUEI- PUMP
Relay Testing
NOTE: lf the engine starts and continues to run, the
PGM-Fl main relay is OK.
1. Remove the PGlvl Fl main relay.
2. Attach the battery positive terminal to the No. 2 ter-
minal and the battery negative terminal to the No. 1
terminal of the PGM-Fl main relay. Then check for
continuity between the No. 5 terminal and No. 4 ter-
minal of the PGN4-Fl main relay.
. lf there is continuity, go on to step 3.
. lf there is no continuity, replace the PGM-Fl main
relay and retest.
To lGN. 1
To GROUND
To ST. SWITCH
To ECM CONNECTORTERMINAL A16
{FLRI
To BAT @
To ECM CONNECTORftNMNALSAll and A24 (lGP)
V
To FUEL PUMP
3. Attach the battery positive terminal to the No. 5 ter-
minal and the battery negative terminal to the No. 3
terminal of the PGM-Fl main relay. Then check that
there is continuity between the No. 7 terminal and
No. 6 terminal of the PGM-Fl main relav.
. lf there is continuity, goon tostep4.
. lf thereis nocontinuity, replacethe PGM-Fl main
relay and retest.
4. Attach the batterv oositive terminal to the No. 6 ter-
minal and the battery negative terminal to the No. 1
terminal ol the PGM-Fl main relay. Then check that
there is continuity between the No. 5 terminal and
No. 4 terminal of the PGM-Fi main relav.
. lf there is continuity, the PGM-FI main relay is OK.
. lf the fuei pumpstill does not work, goto Harness
Testing on the next page.
. lf thereis nocontinuity, replacethe PGM-Fl main
relav and retest.\;

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- Engine will not start.- Inspection of PGM-FI mainrelay and relay harne$.
Check lor an open in the ware{GND line}l1. Turn the ignition switch OFF.2. Disconnect the PGM Fl mainrelay 7P connector.3. Check for continuity betweenthe PGM'FI main relay 7P connector terminal No. 3 and bodyground,
Repair open in the wire betweenthe PGM-Fl main relay and G101.
Check for an open or shon in thewire {BAT line)rMeasure voltage between thePGM-Fl main relay 7P connectorterminal No.7 and body ground.- Fepaii open or short in thewire between the PGM-FImain rel6y and the Fl E/M 115A) tuse.- Replace th€ Fl E/M {15 A)fusein the under-hood tuse/relay
ls there battery vohage?
Check foi an open or shori in thewire (lG1 line):1. Turn the ignition switch ON (ll).
2, Measure the voltage betweenthe PGM Fl main relay 7P con-nector terminal No. 5 and bodyground,R€pair open or short in thewire betwo€n the PIGM-FI mainrelav and the No. 13 FUELPUMP ISRS UNIT) (15 Altuse.ReDlace the No. 13 FUELPUMP ISRS UNID (15 Al fusein the under-dash tuse/relayoox,
Check for an open or short in thewire {STS linel:1. Turn the ignition switch to theSTART { lll) position.NOTE:. M/T: Clutch pedal must beoepresseo.. A/T: Transmission in ld or
E position.2. Measure the voltage betweenthe PGM-FI main relay 7P con-nector terminal No. 2 and bodyground,
Troubleshooting
'l RELAY 7P CONNECTOR
GND
t .--.-l T;-l IBLK)L' 'r I" T----
lr s o rl A
+
Wire side o{ female termanals
8AT(YEL/WHT)
STS {BLU/WHTI
(cont'd)
(To page11- t 26)
11-125

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Emission Control SYstem
EVAPrHREEWAYVALVE
tFi4s6l
fPf 45? I
Evaporative Emission {EVAP) Controls (cont'd)
Possible Csuse
. Fuel fill cap
. Vacuum Connections
. FuelTank
. EVAP Control Canister Vent Shut Valve
. EVAP Control Canister Vent Shut Valve Circuit
. EVAP Purge control Solenoid Valve
. EVAP Purge Control Solenoid Valve Circuit
. EVAP Bypass Solenoid Valve
. EVAP Bypass Solenoid Valve Circuit
o FuelTank Pressure Sensor
. Fuel Tank Pressure Sensor Circuit
. EVAP Control Canister
. Throftle Body
Troubloshooling Flowchart
The scan tool indicates Diagnostic Trouble Code {DTC) P1456: Evaporative Emission (EVAP) control system leak
detected (fuel tank system).
ThescantoolindicatesDiagnosticTroubleCode(DTC)P't457:EvaporativeEmission(EVAP)controlsystemleak
detected (EVAP control canister system)'
VACUUMPUMP/GAUGE,0 - 30 in.Bs
A973X - 041 -
xxxxx
EVAP
CANISTER
EVAPCONTROLCANISTERVENTSHUTVALVE
O-RINGReplace.
ECM CONNECTOR A I32P)
(To page 11-147)
- Tho MIL ha3 bcan t6po.tod
on.- DTC P1,t56 or P1457 i! 3toLd.
Chcck the EVAP contiol canittc.
vont shut valva:1. Disconnect the vacuum hose
Irom the EVAP three way
valve and conned a vacuumpump to the hose
2. Remove the EVAP control
canister vent shut valve {rom
the canister.3. Turn the ignition switch ON lll)
4. Apply vacuum to the hose
Chack tor a lhort in tho wire
lVSv linol:Disconnect the 2P conn€ctor from
the EVAP control canister vent
Does the valve hold vacuum?
Rcp.i. ahoft in thc wir. bctw.cn
th6 EVAP conlrol caniator v.nt
3hut valve snd the ECM lA29).Does the valve hold vacuum?
Check tha EVAP coitlol canittcr
vent 3hut valvo:1. Turn the ignition switch OFF
2. Connect ECM connoctor ter'
minal A29 to bodY ground
whh a iumPer wlre
3. Turn the ignition switch ON (ll).
4. Apply vacuum to the hose.
Baplaca tha EVAP control c!ni!'
td vant 3hul Yalvc.
Does the valve hold vacuum?
38t0tl
1215[6'tat92Au232a
2t27a22
VSV {LT GRN) I JUMPER WIRE
Wire side o{ {emale terminals
11-146
{To page 11'147)

Evaporative Emission {EVAPI Two Way Valve Tosting
2.
Remove the fuelfill cap.
Remove the vapor line from the EVAP two way
valve, and connect it ro a T-fitting from a vacuum
gauge ano a vacuum pump as shown.
VACUUM/PRESSURE
1.
GAUGE0-a in,Hg
VACUUM PUMP/GAUGE,0 - 30 in.tlgA973X - 041 -
xxxxx
i/NI
t/
il\/
1il|
07JAZ - 001(X)08
3. Apply vacuum slowly and continuously while watch-
ing the gauge. The vacuum should stabilize momen-
tarily at 0.8 - 2.1 kPa (6 - 16 mmHg, 0.2 - 0.6 in.Hg).
lf the vacuum stabilizes {valve opens) below
0.8 kPa (6 mmHg,0.2 in.Hg) or above 2.1 kPa(16'mmHg,0.6 in.Hg), install a new valve and retest.
4. Move the vacuum oumo hose from the vacuum fit-
ting to the pressure fining, and move the vacuum
gauge hose from the vacuum side to the pressure
side as shown.
PRESSUREstoE
Slowly pressurize the vapor line while watching thegauge. The pressure should be stabilize momentarily
above 1.0 kPa (8 mmHg, 0.3 in.Hg).
lf the pressure momentarily stabilizes (valve
opens) above'1.0 kPa (8 mmHg.0.3 in.Hg), the
valve is OK.
lf the pressure stabilizes below 1.0 kPa {8 mmHg,
0.3 in.Hg), install a new valve and retest.
T.FMING
1 1-1 51

Gonnector ldentification and Wire Harness Routing
Rear Wire Harngss {Hatchbackl
Connector or
Terminal
Number of
C8vitiesLocationConnec{s toNotos
c501
c502
c504
c505
cs06
c507
c508
c509
c510
c51 1
c512
c513
c514
c515
uc to
c518
c519
c520
c522
c524
c528
c529
c530
c531
l6
14
8
16
14
2
1
I
8
3
1
2
2
2
20
20
2
2
6
2
2
2
3
4
Behind left kick panel
Behind left kick panel
Behind dashboard lower cover
Behind dashboard lower cover
Behind dashboard lower cover
Driver's door
Center floor
Center floor
Left quarter panel
Fuel tank
Fuel tank
Right quarter panel
Right quarter panel
Left quarter panel
Left quarter panel
Left quaner panel
Left quarter panel
Left side corner of cargo area
Left side corner of cargo area
Left side corner of cargo area
Left rear corner of cargo area
Center of cargo area bulkhead
Right rear corner of cargo area
Center of cargo area bulkhead
Right side of cargo area
Right side of cargo area
Right side of cargo area
Center of cargo area bulkhead
Center of cargo area bulkhead
Center of cargo area bulkhead
Left side corner of cargo area
Main wire harness {C421)
Main wire harness {C422)
Underdash fuse/relay box (C912)
Underdash fuse/relay box (C915)
Dashboard wire harness (C554)
Driver's doo. wire harness (C601)
Driver's seat belt switch
Parking brake switch
Driver's door switch
Fuel pump
Fuel gauge sending unit
Passenger's door switch
Right rear speaker
Left rear speaker
Noise condenser
Connector C517
Connector C516
Power antenna motor
Cargo area light
Trailer lighting connector
Left taillight
License plate lights
Right taillight
Hatch latch switch
Hatch wire harness (C752)
Hatch wire harness (C751)
Hatch wire harness (C757)
Hatch lock actuator
Hatch key cylinder switch
Hatch opener actuator
Hatch opener relay
Left side of floor
Center of cargo area bulkhead
Body ground, via rear wire harness
Body ground. via rear wire harness
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Connector ldentification and Wire Harness Routing
Connector or
Terminal
Numbel of
CavitiesLocationConnects toNotes
c501
c502
c503
c504
c505
c506
c507
c508
c509
c5l0
c511
c512
c513
c514
c515
c517
c518
c519
c520
c521
c522
c523
c527
c528
c529
c530
c531
c532
c533
c534
c535
cs36
14
8
14
2
1
1
8
3
1
2
2
1
20
20
3
2
6
4
2
4
6
6
1
1
2
1
1
4
2
4
Behind left kick panel
Behind left kick panel
Behind dashboard lower cover
Behind dashboard lower cover
Behind dashboard lower cover
Driver's door
Center floor
Center floor
Left B-pillar
Fuel tank
Fuel tank
Right B pillar
Above right side of trunk
Above left side of trunk
Left quarter panel| .{+ ^',rrrar ^rnal
Left quarter panel
Left side corner of trunk
Above center of trunk
Left side corner of trunk
Left rear corner of trunk
Right rear corner o{ trunk
Right rear corner ot trunk
Lelt rear door
Right rear door
Left quarter panel
Left side of rear window
Above right side of trunk
Right quarter panel
Right side of rear window
Left side of trunk lid
Center of trunk lid
Right side of trunk lid
lvlain wire harness (C421 )
lvlain wire harness (C422)
Underdash fuse/relay box (C912)
Under dash fuse/relay box (C915)
Dashboard wire harness (C554)
Driver's door wire harness (C6Ol)
Driver's seat belt switch
Parking brake switch
Driver's door switch
Fuel pump
Fuel gauge sending unit
Front passenger's door switch
Right rear speaker
Left rear speaker
Noise condenser
Connector C517
Connector C516
Power antenna motor
Trunk light
Trailer lighting connector
Left outer taillight
License plate lights
Right outer taillight
Lett rear door wire harness
(c651)
Right rear door wire harness
1C656)
Left rear door switch
Rear window defogger {+ )
High mount brake light
Right rear door switch
Rear window detogger (- I
Left inner taillight
Trunk latch switch
Right inner taillight
G501
G502
G503
Behind left kick panel
Left side of tloor
Above center of trunk
Body ground, via rear wire
harness
Body ground, via rear wire
harness
Body ground, via rear wire
harness
Rear Wire Hamess {Sedan}
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III
J- - - - --------- l (Haldlback)
Power door oci contro unrt IDriveas door lockaclualof I;Dtlver's door key cylinder swrtclrDfveas door lock swilch
BLKMHT ---1-
I Power window masler swildl)
Dr veis seal belt swilch
Fue gauge sending lnilFue plmp (FP)
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----------l (sedan)
Power dooa lock conlrol unil IDriveas door lock aclualor I
BLKWHT-
Drlver's door key cylinder swllchDrlve/s door lock swilch
I Power window masler swilch)
Dive. s seal beit swilch
Foelgaee sending unitFuelpump (FP)
i Gso2
_ _ _--_______.] {Halchback)
r- || | F T6iler tiqhxng conneclor I
lil i ,",rror,'nqfi JLicense plale lighlsHalci opener aotualorHalci opener swilch
Rear window wiper molor
High mounl hake ighl
otw ^ -n1
t-
l_:1' ^r;-"-1 7_1;.^G503
Trunk lalch swildlTf ailer light ng conneclorLicense plate lighlsRiohl IL; J Inner larqnr
Riohl I .Le-ft J raflqnl
High mounl brake lighlRea. window d€logger
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I
(cont'd)
B : R6arwire hamessM : Dver's doorwire harness@ Hatchwire harness
:
G503
23-65

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'ouno ulslnoulron Scnemarlcs -
This samDle Ground Distribution schematic shows all of the components thal share two
ground points.
LEFT RIGHT RIGHTREAR REAR REARLEFT LEFT TURN RTGHT TURN RIGHT SIDEBRAKE LIGHTS/ BACK-UP SIGNAL BACK-UP SIGNAL BRAKE LIGHTS/ MARKER
TAILLTGHTS LIGHT LIGHT LIGHT LIGHT TAILLIGHTS LIGHT
Page110-7 Page110-8 Page110-5 Page110-8 Page110'5 Page110-7 Page110-7
r--r r--t t- t-l t-t ,-t r--r r--t r-\t*-r r--r \./ \/ \./ \/ \/
I LICENSE LIGHTS
I Page 110'6
l"uo, O O
l*"''* L.J
!-.1**
FUELPUMPPage 23-1
lltl
LEFTREARstoEMARKERLIGHTPage 110-7
POWERANTENNAMOTORPage 151
tlll
:E_,
a-al
JL
c549
t\
HIGHMOUNTBRAKELIGHTPage 110-9
ttll
REARwtNDowWIPERMOTORPage 92
tlll
iIn*
a-
Ira
T!. G601
FUEL TANKUNITPages 74and 81
tltl
1 Y C652
irg c530- | puoro tzt
I
106
T+ Gs21
c603
Ground DistributiSchematics
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