1994 HONDA INTEGRA power steering

ll.Remove the engine wire harness connectors and
wi.e ha.ness clamps from the cylinder head and the
intake manitold.
Four fuel injector connectors
Intake air tempe.ature {lAT) sensor connector
Engine coolant temperature (ECT) sensor con-
nector
TDC/CKP/CYP sensor connector
lgnition coil conn€ctor
ECT gauge sending unit connector
Throttle position (TP) sensor connector
VTEC solenoid valve connector
VTEC Dressure switch connector
Manifold absolute pressure (MAP) sensor con-
nector
ldle air control {lAC) sensor connector
EVAP purge controlsol€noid valvo connector
Intake air bypass {lABl control solenoid valve
conneclor
a
o
a
o
a
a
a
a
a
a
a
a
a
12.
13.
Remove the spsrk plug caps and distributor from
the cylinder head.
Remove the upper radiator hose, heat€r hose and
water bypass hose.
WATER BYPASS
HOSE
6r1.0mm9.8 N.m (1.0 kgt m,1.2 tbtftl
14. Remove the sDlash shield.
Remove the engine ground cable.
Romovo the adjusting bolt and mounting bolts, then
remove the power steering (P/S) pump belt and P/Spump.
. Do not disconnect the P/S hoses.
(cont'dl
15.
6x1.0mm9.8 N.m 11.0 kgl.m,7.2 tbt.ttl
6-57
,l

Oil Pump
5.
4.
Removal/lnspection/lnstallation
6. Remov€ the timing belt.
7. R€move the drive pulley.
8. Remov€ the oil pan and oil screen.
9. Remove the oil pump.
Drain the engine oil.
Turn the crankshatt and align the white groove on
the crankshalt pulley with the pointer on the lower
cover.
Remove the cylinder head cover and middle cover.
Remove the power steering pump belt, air condition-
er belt and the alternator belt.
Remove the crankshaft pulley and remove the low-
er cover.
OIL PUMP
OIL PAN
8-10
1O. Remove the screws trom the pump housing, thsn
separate the housing and coveJ.
1 1. Check the inner-to outer roto. radial clearance on thepumP rotor.
Innor Rotol-to-Outor Rotor Radial Cloaranco
StandErd (Newl: O.O4-O.16 mm(0.O02-0.006 in)
Service Limit: O.2O mm (0.008 inl
Check the housing-to-rotor axial clearance
pump rotor.
Housing-to-Botor Axial Claalanc€
Standard (Nowl: O.O2-O.O7 mm(O.OO1 -O.OO3 inl
Service Limit: O.15 mm (0.006 in)
on the12.
HOUSING

Fuel and Emissions
Spocial Tools ................ 1 1-2
Compon€nt Location
lndex ................. ...... 11-3
System Description
Vacuum Connectiona .......,.................... 1 1 -8
Efectrical Connections ....,.,.,......,...,,.....,'11-12
Syst€m Connectors ...,...,.................-.--. 11-2O
T.oubloshooting
Troubleshooting Guido .......................... 1 1-32
Self -diagnostic Procedures .,..,............... 1 1 -34
How to Road Flowcharts ...................,... 11-39
PGM-Fl System
Systom Description .............................. 1 l-4O
Troubleshooting Flowcharts
Engine Control Moduls ............... ........... 1 1 -42
Heated Oxygon Sensor ......,.................. 1 1-46
Heated Oxyg€n Sonsol Heatel .....,......... 1 1 -47
Fuel Supply System ..............-............... 1 1-50
Manitold Absolute Pressure
Ssnsor ............................................ 1 1-52
Top D6ad Cente./Crankshatr
Position/Cylindor Position sonsor ........ 1 1 -56
Engine Coolant Tempsrature Sonsor ....... 11-58
Throttlo Position Sonsor ........,..,,........... 1 1-60
Intake Air Temperaturs Sensor ............... 11-62
Baromet c Prsssuro Sensor ......,...,...,..,. 11-64
lgnition Output Signal ........................... 1 1 -66
Vehicle Spe€d Sensor ........................... 1 1 -68
Electdcal Load Dotector ....,...,..........,.... 1 1 -7O
Knock Sensor [818C1 engine] ............... 11-74
A/T Fl Signal A/B ................................. 1 1-76
ldle Contlol System
System Troubleshooting Guide .................. 1 1 -78
Systom Description ........ 11-79
Troubloshooting Flowchans
ldl€ Ail Control Valve ........................... 1 1 -82
Ail Conditioning Signal ......................... 1 1 -84
Altemator FR Signal ............................. 1 1 -86
Automatic Transaxle (A/T) Gear
Position Signal ......... 11-88
Brake Switch Signal ............................. 1 1 -9O
Startel Switch Signal ............................ 11-92
Power Steering Pressure Switch Signal ... 11-93
Fast ldle Thermo Valve ...................,......... 1 1 -94
ldls Speed S€tting .................................... 1 1 -95
Fuel Supply System
Systam Tloubloshooting Guid. .................. 1 1 -97
Fuol Linos ...................... 1'l -98
System Description ........ 11-100
Fuol Prassure ................. 11-100
Fu6l Ini6ctors ................. 11-102
Fuel Pressure Ragulato. .,. 11-106
Fuel Filter ...................... 11-108
Fual Pump ..................... 11-109
PGM-Fl Main F6lay ................................... 1 1"1 1 1
Fuel Tank ...................... t 1-114
Intake Air System
System Troubloshooting Guido .................. 1 1 -1 1 5
Systom Dascription ........ 11-116
Air Clean€r .................... 11-117
Throttls Cable ................'11-118
Throttl8 Body ................ 11-120
lntake Air Bypass Cont.ol Systsm
[B18Cl enginal .,......... 11-123
Intake Manilold [B1881 onginol ................. 11-128
Emission Control System
Systsm Troubleshooting Guido .................. 1 1 -1 29
Systam Doscription ........ 11-130
Tailpips Emission ........... 11-130
Thrae Way Catalytic Convortor ...,...,........., 11-131
Positiva CrankcaEo V6ntilation Systcm .,....., 11-134
Evaporativo Emission Contro|,..,..,.,.,,.,,..,.., 1 1-135

Component Locations
lndex
81881 sngin6:
IOLE AIR CONTROL OACI VALVEpage '11-82T
MANIFOLD ABSOLUTEPRESSURE {MAP} SENSOREVAP
THROTTLE POSITIOIII {TP) SENSORTroubleshooting, page 1 1-60
Troubleshooting,
(ECTI SENSOR HEATEO
PURGE CONTROLSOLENOID VALVETroubleshooting,11-137
THROTTLE CABLEInspection/Adiustment, page 1 1-1 18
Installation, page 11- 1 18
SENSOR lHO2S}
TOP DEAD CENTER/CRATIIKSHAFTPOSITIOf{/CYLINDER POSITION(TDC/CKP/CYP} SENSORTroubleshooting, page 1 1-56
INTAKE AIR TEMP€RATURE IIAT) SEI{SORTroubl€shooting, page 1 1 -62
POWER STEERING PRESSURE (PSP)
swtTcHTroubleshooting. page 11-93
sq
IDLE THERMO VALVEInspection, page 11-94
ELECTRICALLOADOETECTORIELD}Troubleshooting.page,l l-70
IGNITIONMODULE {ICMI
Troubleshooting, page 1 1-66
ENGINE COOLANT TEMPERATroubleshooting, page I 1-58Troubleshooting. pages 11-46, 47
11-3

Component Locations
lndex
B18Cl ongino:
THROTTLEPOSITION (TP}
SENSOR
MANIFOLD AESOLUTEPRESSURE (MAPI SENSOR
Troubleshooting, page 1 1-52
EVAPPURGE CONTROLSOLEiIOID VALVETroubleshooting,page 11-137
VALVE
INTAKE AIR TEMPERATURE
IIAT) SENSORpage 11-62
THROTTLE CABLEInspection/Adiustment, page 'l 1-1 19
lnstallation, page 1 1-1 19
IOLE AIF CONTROL (IACI VALVETroubleshooting. page 1 1 -82
Troubleshooting,page 1 1-6O
TOP DEAD CENTER/CRANKSHAFTPOSITION/CYLINDER POSITION
{TDC/CKP/CYPI SEI{SORTroubl€shooting. Page 1 1 -56POWER STEERING PRESSURE (PS'I
swtTcHTroubleshooting, page 1 1-93ELECTRICALLOADDETECTORIELD}Troubleshooting,page.1 1-70
IGNITION CONTNOL MODULE OCMI
Troubleshooting, Psge 1'l-66
ENGIT{E COOLANT TEMPERA
{ECT} SEI{SORTroubleshooting, Pag€ 1 1-58
sElrlsoR tKslTroubfeshooting, page 1 1 -7 4
HEATED OXYGEN SENSOR (HO2S}
Troubleshooting, pages 11-46, 47
FAST IDLEInspection, page 1 'l -94
11-4

Power Steering Pressure (PSP) Switch Signal
This signals the ECM when the power steering load
-;"nection.*."------'.ill]
--
;;;;;;;l w
;:"r"tffa;i'
connecrors (see
Turn the ignition switch ON.
Measure voltage between 88 {+ )terminal and A26 {-) terminal.
is high.
o ooooo oooo ooo I oo ooo oo o l.Do€d(iltl ooooooooooo
o oooo ooo ooooQ I oooQ oo oo $aG$ast.l oooooooo oo
A26 l-) Bg l+l
L6s! thsn l.O V?
wire side
Turn the ignition switch OFF.
Disconnect the 2P connector tromthe PSP switch.
ls there less than 1.0 V?
Tu.n the ignition switch ON.
Turn steering wheel slowly.ls there less than 1.O V?
Measure voltage between B8 (+)
terminal and 426 (-) termanalwhile steering wheel is turning.
Ropair opon in GRN wire betwssnECM {88} and PSP srYilch ot BLKwi.o botw6cn PSP switch andG301 (locatod at loft ongin6 com-partm6ntr.
Disconnect the 2P connector lromthe PSP switch.PSP switch signal is OK.
Repair short in GRN wi.e botwoonECM {881 and PSP switch.ll wiro i3 OK, substitute a known-good ECM and.ocheck. lIproscribod vollage is now available, replaco tho original ECM.
GRN
PSP SWITCH
11-93

Steering
Special Tools ............. 17-2
Component Location
lndex ................ ...... 17-3
System Description
Ff uid Flow Diagram ......................... 17 -1
Steering Pump ................................. 17-5
Steering Gearbox ............................. 17-7
Troubleshooting
General Troubleshooting ................ 17-10
Noise and Vibration ......................... 17-14
Fluid Leaks ............. 17-16
Inspection and Adiustment
Steoring Operation .......................... 17 -14
Power Assist Check
with Car Parked ........................... 17-18
Steering Linkage and Gearbox ....... 17-19
Pump Beh .............. 17-20
Rack Guide Adjustment ............. ..... 17-21
Ff uid Replacement ...................... ..... 17 -21
Pump Pressure Check .................. .... 17 -22
Ffuid Leakage lnspection ................ 17-23
+ Steering Wheel
Removal ..,,,,,,,........ 17-24
Disassembly/Reassembly ............... 17 -25
fnstallation ,......,,,,,. 17-26
* Steering Column
Removaf .................17-28
Inspection .............. 17-30
Installation ............. 17-31
Power Steering Hoses. Pipes
Replacemont ......... 17-3tl
Power Steering Pump
Removal ................. 17-35
Disassembly .......... 17-35
Reassembly ........... 17-'10
lnstallation ........,..., l7-tltl
Steering Gearbox
Removaf .,.,............. 17-45
Disassembly .......... 17-/E
Reassembly ........... 17-53
lnstallation ............. 17-63
Ball Joint Boot Replacement .......... 17-65
SUPPLEMENTAL RESTRAINT SYSTEM {SRSI
The Integra SRS includes a driver's airbag. located in the steering wheel hub, In addition, all models except the
RS model for Canada have a front passenger's airbag located in the dashboard above the glove box. Information
necessarv to safely service the SRS is included in this Service Manual. ltems marked with an asterisk {') on the
contents page include, or are located near, SRS components. Servicing. disassembling or replacing these items
will require special precautions and tools, and should therefore be done by an authorized Acura dealer.
a To avoid rsndering ths SRS inoporative, which could load to po.sonal iniury 01 d€ath in th€ event ot a ssvare
lrontal collision, all SRS service work muat be performod by an authorizod Acura deal6t.
a lmploper service procodules. including incorloct romoval and installation of the SRS, could lead to personal iniu-
ry caused by unintontional activation ot the airbags.
a All SRS elsctdcal wiring harnesses ara covorod with ysllow insulation. Rolalod compon€nts 8re locatsd in tho
stse ng column, tront console, dashboard, and dashboard lower panel, and in the dashboard above the glove
box. Do not use oloctrical tost equipmoni on thosa cilcuits.
NOTE: The original radio has a coded thett protection circuit. Be sure to get the customer's code number before
- disconnecting the battery.- removing the No. 32 (7.5 A) tuse from the under-hood fuse/relay box.
- removing the radio.
Alter service, reconnect power to the radio and turn it on. When the word "CODE" is displayed' enter the cus-
tomer's 5-digit code to restore radio operation.

System Description
Fluid Flow Diagram
The system is a compact rotary-valvs-type power stssring, connocted to the st€oring gearbox. Th6 fluid pressure is pro-vided by a vane-type pump which is driven by the engine crank pulley. The amount of fluid and pressurs is regulsted bythe flow control valve built into ths pump, The fluid prssaurs from th6 pump is dolivsred to tho valve unit sround the pin-ion of the steering g€arbox. The vslv€ inside the valvs unit controls the hydraulic prossur€ End changos the direction otthe flow. The fluid then flows to the power cylinder, where rack thrust is gen6rat6d. Fluid returning from th6 powsr cylin-der flows back to the .eservoir, where the fluid is 'filtered" and supplied to the pump Egain.
17-4