1995 ACURA TL fuel cap

Fuel Pressure
Relieving
Before disconnectin g fue l pipe s o r hoses , releas e pres -
sure fro m th e syste m b y loosenin g th e servic e bol t o n
top o f th e fue l rai l ('9 7 - 9 8 models : to p o f fue l filter) .
• D o no t smok e whil e workin g o n th e fue l system .
Kee p ope n flame s o r spark s awa y fro m you r wor k
area.
• B e sur e t o reliev e fue l pressur e whil e th e ignitio n
switc h is off .
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
the n writ e dow n th e frequencie s fo r th e radio' s pre -
se t buttons .
2 . Disconnec t th e batter y negativ e cabl e fro m th e bat -
ter y negativ e terminal .
3 . Remov e th e fue l fil l cap .
4 . Us e a bo x en d wrenc h o n th e servic e bol t o n th e
fue l rai l ('9 7 model : o n th e fue l filter ) whil e holdin g
th e banj o bol t wit h anothe r wrench .
5 . Plac e a ra g o r sho p towe l ove r th e servic e bolt .
6 . Slowl y loose n th e servic e bol t on e complet e turn .
'9 6 model :
SERVIC EBOLT12 N- m(1.2 kgf-m , 8. 7 Ibf-ft )
FUE L RAI L SHO
P TOWE L
'97 - 9 8 models :
SERVICE BOL T12 N- m (1. 2 kgf-m ,8.7 Ibf-ft )
FUELFILTE R
SHOP
TOWE L
NOTE:
A fue l pressur e gaug e ca n b e attache d a t th e ser -
vic e bol t hole .
Alway s replac e th e washe r betwee n th e servic e
bol t an d th e banj o bol t wheneve r th e servic e bol t
i s loosened .
Replac e al l washer s wheneve r th e bolt s ar e
removed .
(cont'd)
ProCarManuals.com

Evaporative Emission (EVAP) Controls

Description

The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The

system consists of the following components:

A. Evaporative Emission (EVAP) Control Canister

An EVAP control canister is used for the temporary storage of fuel vapor until the fuel vapor can be purged from the

EVAP control canister into the engine and burned.

B. Vapor Purge Control System

EVAP control canister purging is accomplished by drawing fresh air through the EVAP control canister and into a port

on the throttle body. The purging vacuum is controlled by the EVAP purge control solenoid valve.

'96 model:
'97 - 98 models:

C. Fuel Tank Vapor Control System

When fuel vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and

regulates the flow of fuel vapor to the EVAP control canister.

'96 model:

INTAKE MANIFOLD
THROTTLE

BODY

EVAP PURGE

CONTROL

SOLENOID VALVE

FUEL TANK

EVAP VALVE
EVAP TWO WAY VALVE
From

No. 4 ECU
(PCM) (15A)

FUSE (in the under-dash

fuse/relay box)

EVAP

CONTROL

CANISTER FRESH

AIR
EVAP PURGE

FLOW SWITCH

FUEL FILL CAP
PCM
VARIOUS

SENSORS

FUEL TANK
ENGINE COOLANT TEMPERATURE ABOVE 158°F (70°C)
ENGINE COOLANT TEMPERATURE ABOVE 99°F (37°C)
EVAP PURGE CONTROL SOLENOID VALVE DUTY CON-

TROLLED AFTER STARTING ENGINE
EVAP PURGE CONTROL SOLENOID VALVE OFF AFTER

STARTING ENGINEProCarManuals.com

Fuel Tube/Quick-Connec t Fitting s
Precaution s
Do no t smok e whil e workin g o n th e fue l
system . Kee p ope n flame s awa y fro m you r wor k area .
Th e fue l tube/quick-connec t fitting s assembl y connect s
th e in-tan k fue l pum p wit h th e fue l fee d pipe . Fo r remov -
in g o r installin g th e fue l pum p an d fue l tank , i t i s neces -
sar y t o disconnec t o r connec t th e quick-connec t fittings .
Pay attentio n to following :
The fue l tube/quick-connec t fitting s assembl y i s no t
heat-resistant ; b e carefu l no t t o damag e it durin g weld -
in g o r othe r heat-generatin g procedures .
Th e fue l tube/quick-connec t fitting s assembl y i s no t
acid-proof ; d o no t touc h i t wit h a sho p towe l whic h
wa s use d fo r wipin g batter y electrolyte . Replac e th e
fue l tube/quick-connec t fitting s assembl y i f i t cam e
int o contac t wit h electrolyt e o r somethin g similar .
Whe n connectin g o r disconnectin g th e fue l tube/quick -
connec t fitting s assembly , b e carefu l no t t o ben d o r
twis t i t excessively . Replac e i t i f damaged .
A disconnecte d quick-connec t fittin g ca n b e reconnected ,
bu t th e retaine r o n th e matin g pip e canno t b e reuse d onc e
i t ha s bee n remove d fro m th e pipe . Replac e th e retaine r
whe n
— Replacin g th e fue l pump .
— Replacin g th e fue l fee d pipe .
— It ha s bee n remove d fro m th e pipe .
— It i s damaged .
FUEL PIP ERETAINE RFUEL TUB E
QUICK-CONNEC TFITTINGS
Disconnectio n
Do no t smok e whil e workin g o n th e fue l
system . Kee p ope n flame s awa y fro m you r wor k area .
1 . Disconnec t th e batter y negativ e cable .
2 . Remov e th e fue l fil l cap , an d reliev e fue l pressur e in
th e tank .
3 . Reliev e fue l pressur e (se e pag e 11-124 ).
4 . Chec k th e fue l quick-connec t fitting s fo r dirt , an d
clea n if necessary .
5 . Hol d th e connecto r wit h on e han d an d pres s dow n
th e retaine r tab s wit h th e othe r hand , the n pul l th e
connecto r off .
NOTE :
Be carefu l no t t o damag e th e pip e o r othe r parts .
Do no t us e tools .
If th e connecto r doe s no t move , kee p th e retaine r
tab s presse d down , an d alternatel y pul l an d pus h
th e connecto r unti l i t come s of f easily .
D o no t remov e th e retaine r fro m th e pipe ; onc e
removed , th e retaine r mus t b e replace d wit h a
ne w one .
LOCKIN G PAW L
RETAINE R TA B
PIPE
CONNECTO R
Press down .
6. Chec k th e contac t are a o f th e pip e fo r dir t an d dam -
age.
— If th e surfac e is dirty , clea n it .
— If th e surface is rust y o r damaged , replac e th e fue l
pum p o r fue l fee d pipe .
CONTAC T ARE A
CONNECTO R
RETAINER
PIPE
ProCarManuals.com

Fuel Supply System

Fuel Pressure

Relieving (models with service bolt)

Before disconnecting fuel pipes or hoses, release pres-

sure from the system by loosening the 6 mm service

bolt on top of the fuel filter.

Do not smoke while working on the fuel system.

Keep open flames or sparks away from your work

area.

• Be sure to relieve fuel pressure while the ignition

switch is off.

1. Make sure you have the anti-theft code for the radio,

then write down the frequencies for the radio's pre-

set buttons.

2. Disconnect the battery negative cable from the bat-

tery negative terminal.

3.
Remove
the
fuel
fill
cap.

4. Use a box end wrench on the 6 mm service bolt at

the fuel filter while holding the special banjo bolt

with another wrench.

5. Place a rag or shop towel over the 6 mm service bolt.

6. Slowly loosen the 6 mm service bolt one complete

turn.

SERVICE

BOLT

12 N-m

(1.2 kgf-m, 8.7 Ibf-ft)

SHOP TOWEL

FUEL FILTER
NOTE:

• A fuel pressure gauge can be attached at the 6 mm

service bolt hole.

• Always replace the washer between the service bolt

and the special banjo bolt whenever the service bolt

is loosened.

• Replace all washers whenever the bolts are removed.

Relieving (models without service bolt)

Before disconnecting fuel pipes or hoses, release pres-

sure from the system by loosening the 12 mm banjo

bolt on top of the fuel filter.

• Do not smoke while working on the fuel system.

Keep open flames or sparks away from your work

area.

• Be sure to relieve fuel pressure while the ignition

switch is off.

1. Make sure you have the anti-theft code for the radio,

then write down the frequencies for the radio's pre-

set buttons.

2. Disconnect the battery negative cable from the bat-

tery negative terminal.

3.
Remove
the
fuel
fill
cap.

4. Use a box end wrench on the 12 mm banjo bolt at

the fuel filter while holding the fuel filter with anoth-

er wrench.

5. Place a rag or shop towel over the 12 mm banjo bolt.

6. Slowly loosen the 12 mm banjo bolt one complete

turn.

12 mm

BANJO BOLT

33 N-m

(3.4 kgf-m, 25 Ibf-ft)

SHOP TOWEL

FUEL FILTER

NOTE: Replace the washers whenever the 12 mm

banjo bolt is loosened or removed.

11-124ProCarManuals.com

Emission Control System

Evaporative Emission (EVAP) Controls

Description

The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The

system consists of the following components:

A. Evaporative Emission (EVAP) Control Canister

An EVAP control canister is used for the temporary storage of fuel vapor until the fuel vapor can be purged from the

EVAP control canister into the engine and burned.

B. Vapor Purge Control System

EVAP control canister purging is accomplished by drawing fresh air through the EVAP control canister and into a port

on the throttle body. The purging vacuum is controlled by the EVAP purge control solenoid valve.

'95 - 96 models:

EVAP PURGE CONTROL SOLENOID VALVE OFF AFTER

STARTING ENGINE

'97 - 98 models:

EVAP PURGE CONTROL SOLENOID VALVE DUTY CON-

TROLLED AFTER STARTING ENGINE

C. Fuel Tank Vapor Control System

When fuel vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and

regulates the flow of fuel vapor to the EVAP control canister.
ENGINE COOLANT TEMPERATURE ABOVE 167°F (75°C)

ENGINE COOLANT TEMPERATURE ABOVE 158°F (70°C)ProCarManuals.com

'95 - 96 models:

VARIOUS

SENSORS

From

No. 4 ECU
(ECM)

(20A) FUSE

(in the under-dash

fuse/relay box)

VARIOUS

SENSORS

EVAP

TWO WAY

VALVE
EVAP

BYPASS

SOLENOID

VALVE
EVAP

THREE

WAY

VALVE
EVAP CONTROL

CANISTER

VENT SHUT VALVE
EVAP PURGE

CONTROL

SOLENOID VALVE
ECM
ECM
From

No. 4 ECU
(ECM) (15A)

FUSE (in the under-dash

fuse/relay box)

EVAP CONTROL

CANISTER
FUEL

TANK

PRESSURE

SENSOR
FUEL TANK
FUEL FILL

CAP

FUEL TANK

EVAP VALVE
FUEL TANK

'97 - 98 models:
FUEL TANK

EVAP VALVE
EVAP TWO WAY VALVE

FRESH

AIR

FUEL FILL CAP
EVAP PURGE

FLOW SWITCH
EVAP PURGE

CONTROL

SOLENOID VALVEProCarManuals.com