1996 ACURA RL KA9 air filter

8-4,8- 5
11-153
4-2 2
6-8 to 6-13 ,
10-1 0
4-33 , 17-15 ,22-85
19-8
19-6
22-6 8
3-2, 3- 3
8-4
, 10- 5
19-10 , 19-11 ,19-12, 19-17 , 19-18,19-19 ,19-2 3
11-124
10-5
14-10 8
15-4
*1: Replac e th e timin g bel t an d timin g balance r bel t a t 60,00 0 mile s (U.S. ) 96,00 0 k m (Canada ) i f th e vehicl e regularl y is drive n in on e o r mor e o f thes e conditions :
• I n ver y hig h temperature s (ove r 110°F , 43°C) .
• I n ver y lo w temperature s (unde r -20°F , -29°C) .
*2 : Replac e ever y 15,00 0 mile s (24,00 0 km ) i f th e vehicl e is drive n primaril y in urba n area s tha t hav e hig h concentration s o f soo t i n th e ai r fro m industr y an d diesel-powere d vehi -
Follo
w th e Sever e Condition s Maintenanc e Schedul e if th e vehicl e is drive n in Canad a o r MAINL Y unde r on e o r mor e o f th e Sever e Drivin g Condition s (pag e 3-5 ):
cles. Replace the air conditioning filter more often if air flow from the climate control system becomes less than usual.
ProCarManuals.com

Fuel Supply System

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0171: The fuel system is too lean [Right

Bank (Bank 1)].

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0172: The fuel system is too rich [Right

Bank (Bank 1)].

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0174: The fuel system is too lean [Left Bank

(Bank 2)].

The HDS or the scan tool indicates Diagnostic Trouble Code (DTC) P0175: The fuel system is too rich [Left Bank

(Bank 2)].

Description

By monitoring the Long Term Fuel Trim, long term malfunctions in the fuel system will be detected.

If a
malfunction
has
been detected
during
two
consecutive
trips,
the MIL
will
come
on and DTC
P0171,
P0172, P0174

and/or P0175 will be stored.

NOTE: If some of the DTCs listed below are stored at the same time as DTC P0171, P0172, P0174 and/or P0175, trou-

bleshoot those DTCs first, then troubleshoot DTC P0171, P0172, P0174 and/or P0175.

P0107, P0108, P1128, P1129: MAP Sensor

P0135: Right Primary HO2S Heater (Bank 1, Sensor 1)

P0137, P0138: Secondary HO2S (Sensor 2)

P0141: Secondary HO2S Heater (Sensor 2)

P0155: Left Primary H02S Heater (Bank 2, Sensor 1)

P0401: EGR Flow Insufficient

P0404: EGR Valve Lift Insufficient

P0406: EGR Valve Position Sensor High Voltage

Possible Cause

Fuel Pump insufficient flow/pressure

Fuel Feed Line clogged, leaking

Fuel Pressure Regulator stuck open

Fuel Filter clogged

Injector clogged, air inclusion

Gasoline doesn't meet Owner's Manual spec.

Primary H02S (Sensor 1) deteriorated

EGR System insufficient flow

Exhaust leak

Fuel Pressure Regulator clogged, stuck closed

Fuel Return Pipe clogged

Injector leaking

Gasoline doesn't meet Owner's Manual spec.

Primary HO2S (Sensor 1) deteriorated

EGR System malfunction (too much flow)

EVAP Canister Purge Valve leaking, stuck opened

(cont'd)ProCarManuals.com

'00 - 01 models:

Vacuum hose No.

LEFT PRIMARY HEATED OXYGEN SENSOR (LEFT PRIMARY

HO2S) (BANK 2, SENSOR 1)

RIGHT PRIMARY HEATED OXYGEN SENSOR (RIGHT
PRIMARY
HO2S) (BANK
1,
SENSOR
1)

SECONDARY HEATED OXYGEN SENSOR (SECONDARY

HO2S) (SENSOR 2)

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

INTAKE AIR TEMPERATURE (IAT) SENSOR

LEFT KNOCK SENSOR (BANK 2)

RIGHT KNOCK SENSOR (BANK 1)

IDLE AIR CONTROL (IAC) VALVE

IDLE AIR CONTROL (IAC) THERMAL VALVE

THROTTLE BODY

IDLE ADJUSTING SCREW

INJECTOR

FUEL PULSATION DAMPER

FUEL FILTER

FUEL PRESSURE REGULATOR

PRESSURE REGULATOR VACUUM CONTROL SOLENOID

VALVE

FUEL PUMP

FUEL TANK

FUEL TANK VAPOR CONTROL VALVE

FUEL TANK VAPOR RECIRCULATION VALVE

AIR CLEANER

RESONATOR

INTAKE MANIFOLD RUNNER CONTROL (IMRC) CHECK

VALVE
INTAKE MANIFOLD RUNNER CONTROL (IMRC) VACUUM

RESERVOIR

INTAKE MANIFOLD RUNNER CONTROL (IMRC) SOLENOID

VALVE 1

INTAKE MANIFOLD RUNNER CONTROL (IMRC)

DIAPHRAGM 1

INTAKE MANIFOLD RUNNER CONTROL (IMRC) SOLENOID

VALVE 2

INTAKE MANIFOLD RUNNER CONTROL (IMRC)

DIAPHRAGM 2

EXHAUST GAS RECIRCULATION (EGR) VALVE VACUUM

CONTROL VALVE

EXHAUST GAS RECIRCULATION (EGR) VALVE VACUUM

CONTROL SOLENOID VALVE

EXHAUST GAS RECIRCULATION (EGR) VALVE and POSI-

TION SENSOR

POSITIVE CRANKCASE VENTILATION (PCV) VALVE

EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE

EVAPORATIVE EMISSION (EVAP) CANISTER

EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT

VALVE

EVAPORATIVE EMISSION (EVAP) CANISTER FILTER

EVAPORATIVE EMISSION (EVAP) TWO WAY VALVE

EVAPORATIVE EMISSION (EVAP) BYPASS SOLENOID

VALVE

FUEL TANK PRESSURE (FTP) SENSOR

THREE WAY CATALYTIC CONVERTER (TWC)

ENGINE MOUNT CONTROL SOLENOID VALVEProCarManuals.com

Fuel Supply System

Description

By monitoring the Long Term Fuel Trim, long term malfunctions in the fuel system will be detected.

If a
malfunction
has
been detected during
two
consecutive
trips,
the MIL
will
come
on and DTC
P0171, P0172,
P0174

and/or P0175 will be stored.

NOTE: If some of the DTCs listed below are stored at the same time as DTC P0171, P0172, P0174 and/or P0175, trou-

bleshoot those DTCs first, then troubleshoot DTC P0171, P0172, P0174 and/or P0175.

P0106*1, P0107, P0108, P1128*2, P1129*2: MAP Sensor

P0135: Right Primary HO2S Heater (Bank 1, Sensor 1)

P0137, P0138: Secondary HO2S (Sensor 2)

P0141: Secondary HO2S Heater (Sensor 2)

P0155: Left Primary HO2S Heater (Bank 2, Sensor 1)

P0401: EGR Flow Insufficient

P1491: EGR Valve Lift Insufficient

P1498: EGR Valve Position Sensor High Voltage

*1: '96 model only

*2: '97 - 01 models

DTC P0172, P0175

System too rich
• Fuel Pump insufficient flow/pressure

• Fuel Feed Line clogged, leaking

• Fuel Pressure Regulator stuck open

• Fuel Filter clogged

• Injector clogged, air inclusion

• Gasoline doesn't meet Owner's Manual spec.

• Primary HO2S (Sensor 1) deteriorated

• MAP Sensor range/performance*1

• EGR System insufficient flow

• Exhaust leak

• Fuel Pressure Regulator clogged, stuck closed

• Fuel Return Pipe clogged

• Injector leaking

• Gasoline doesn't meet Owner's Manual spec.

• Primary HO2S (Sensor 1) deteriorated

• MAP Sensor range/performance*1

• EGR System malfunction (too much flow)

• EVAP Canister Purge Valve leaking, stuck opened
DTCP0171, P0174

System too lean
The scan tool indicates Diagnostic Trouble Code (DTC) P0171: The fuel system is too lean [Right Bank (Bank 1)].

The scan tool indicates Diagnostic Trouble Code (DTC) P0172: The fuel system is too rich [Right Bank (Bank 1)].

The scan tool indicates Diagnostic Trouble Code (DTC) P0174: The fuel system is too lean [Left Bank (Bank 2)].

The scan tool indicates Diagnostic Trouble Code (DTC) P0175: The fuel system is too rich [Left Bank (Bank 2)].

Possible CauseProCarManuals.com

Disassembly/Reassembly
NOTE:
• Clea n al l part s thoroughl y i n solven t o r carbureto r cleaner , an d dr y wit h compresse d air .
• Blo w ou t al l passages .
• D o no t le t th e chec k ball s fal l ou t o f th e mai n valv e bod y whe n removin g th e mai n valv e body .
• Coa t al l part s wit h AT P befor e reassembly .
• Replac e th e O-ring s an d filters .
• Instal l th e filter s i n th e directio n shown .
• Refe r t o pag e 14-14 1 whe n installin g th e chec k ball s o n th e mai n valv e body .
CAUTION : D o no t us e a magne t t o remov e th e chec k balls ; i t ma y magnetiz e th e balls .
ProCarManuals.com

Secondary Valv e Bod y
SPRIN G SPECIFICATION S
Disassembly/lnspection/Reassembl y
NOTE:
• Clea n al l part s thoroughl y i n solven t o r carbureto r cleaner , an d dr y the m wit h compresse d air .
• Blo w ou t al l passages .
• Chec k al l valve s fo r fre e movement . I f an y fai l t o slid e freely , se e Valv e Bod y Repai r o n pag e 14-136 .
• Coa t al l part s wit h AT P durin g assembly .
• Instal l th e filter s i n th e directio n shown .
ProCarManuals.com

Main Valv e Bod y
Disassembly/Inspection/Reassembl y
NOTE:
Clean al l part s thoroughl y in solven t o r carbureto r cleaner , an d dr y the m wit h compresse d air .
Blo w ou t al l passages .
Replac e th e valv e bod y a s a n assembl y if an y part s ar e wor n o r damaged .
Chec k al l valve s fo r fre e movement . I f an y fai l t o slid e freely , se e Valv e Bod y Repai r o n pag e 14-136 .
Coa t al l part s wit h AT P durin g assembly .
Instal l th e filter s i n th e directio n shown .
CAUTION : D o no t us e a magne t t o remov e th e chec k balls ; i t ma y magnetiz e them .
4-3 KICK-DOW N VALV E3-4 SHIF T VALV E
MANUA L VALV E
MAI N VALV E BOD Y
Inspec t fo r wear , scratches ,
and scoring .FILTERReplac e
MAIN ORIFIC ECONTRO L VALV E
2-3 SHI R VALV E
VALVE CA P
ROLLE R
VALVECAPCLI P
SPRIN G SEA T
1-
2 SHIF T VALV E
FILTE
R
Replace .CHOK
E
CHEC
K BALLS , 9
ProCarManuals.com

ATP Pum p Bod y
Disassembly/Inspection/Reassembl y
NOTE:
Clean al l part s thoroughl y i n solven t o r carbureto r cleaner , an d dr y the m wit h compresse d air .
Blo w ou t al l passages .
Replac e th e valv e bod y a s a n assembl y i f an y part s ar e wor n o r damaged .
Chec k al l valve s fo r fre e movement . I f an y fai l t o slid e freely , se e Valv e Bod y Repai r o n pag e 14-136 .
Coa t al l part s wit h ATP durin g assembly .
Instal l th e filte r i n th e directio n shown .
FILTERReplace .
ATP PUM P BOD Y
Inspec t fo r wear , scratches ,
an d scoring .
LOCK-U P TIMIN G
VALVE
VALV E CA P
ROLLE R
TORQU E CONVERTE RCHECK VALV E
SLEEV E
SPRING SEA T
LOCK-U P CONTRO L VALV E
SPRIN G SPECIFICATION SUnit: m m (in )
RELIE F VALV E
ProCarManuals.com