1995 ACURA TL ECO mode

(From pag e 11-54 )
Doe s th e MI L g o of f momentarily ?
I s ther e batter y voltage ?
Chec k fo r a n ope n i n th e wire s
(LG1 , LG 2 lines) :
1 . Reconnec t al l senso r connec -
tors .
2 . Reconnec t th e EC M connecto r
D (22P) .3. Tur n th e ignitio n switc h O N (II) .4. Measur e voltag e betwee n bod y
groun d an d EC M connecto r
terminal s A2 6 an d B 9 individu -
ally .
I s ther e les s tha n 1. 0 V ?
Substitut e a known-goo d EC M
an d recheck . I f symptom/indica -
tio n goe s away , replac e th e origi -
nal ECM .
Replac e th e senso r tha t cause dthe ligh t t o g o out .
ECM CONNECTO R D (22P )
Repai r shor t t o bod y groun d
in th e wir e betwee n EC M(D10) , T P senso r an d fue l tan k
pressur e senso r ('9 7 model) .
Repai r shor t t o bod y groun d in
th e wir e betwee n EC M (D21 )
an d EG R valv e lif t sensor .
A (26P)
Repai r ope n i n th e wire(s )
betwee n EC M (A13 , B1 ) an d
PGM-F I mai n relay .
Chec k fo r poo r connection s
o r loos e wire s a t th e PGM-F I
mai n relay . Wir
e sid e o f femal e terminal s
EC M CONNECTOR S
A (26P)B (16P)
Repai r ope n i n th e wire(s )
betwee n EC M (A26 , B9 ) an d
G10 1 tha t ha d mor e tha n 1. 0 V . EC
M CONNECTOR S
B (16P)
Wire sid e o f femal e terminal s
Chec k fo r a n ope n i n th e wire s
(IGP1 , IGP 2 lines) :
1 . Disconnec t th e junctio n con -
nector , MA F senso r an d IA C
valv e connectors .
2. Tur n th e ignitio n switc h O N (II) .3. Measur e voltag e betwee n bod ygroun d an d EC M connecto rterminals A1 3 an d B 1 individu -
ally .I
s ther e continuity ?
Chec
k fo r a shor t i n th e wire s
(VCC1 , VCC 2 lines) :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e EC M connec -tor D (22P) .3. Chec k fo r continuit y betwee nbody groun d an d EC M con -necto r terminal s D1 0 an d D2 1individually .
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Inspection (model s wit h servic e bolt )
1 . Reliev e fue l pressur e (se e pag e 11-124 ).
2 . Remov e th e servic e bol t o n th e fue l filte r whil e hold -
in g th e banj o bol t wit h anothe r wrench . Attac h th e
specia l tool .
FUELPRESSUR EGAUGE07406 - 004000 1
FUEL PRESSUR EREGULATO R
CLAMP
3. Star t th e engine . Measur e th e fue l pressur e wit h th e
engin e idlin g an d th e vacuu m hos e o f th e fue l pres -
sure regulato r disconnecte d fro m th e fue l pressur e
regulator an d pinched . I f th e engin e wil l no t start ,
turn th e ignitio n switc h O N (II) , wai t fo r tw o sec -
onds , tur n i t off , the n bac k o n agai n an d rea d th e
fue l pressure .
Pressur e shoul d be :
294 - 34 3 kP a (3. 0 - 3. 5 kgf/cm2, 43-5 0 psi )
4. Reconnec t vacuu m hos e to th e fue l pressur e regula -
tor.
Pressur e shoul d be :
23 0 - 27 9 kP a (2.3 5 - 2.8 5 kgf/cm2,3 3 - 4 1 psi )
I f th e fue l pressur e i s no t a s specified , firs t chec k th e fue l
pum p (se e pag e 11-130 ). I f th e fue l pum p i s OK , chec k
the following :
If th e fue l pressur e i s highe r tha n specified , inspec t for :
— Pinche d o r clogge d fue l retur n hos e o r line .
— Fault y fue l pressur e regulato r (se e pag e 11-128 ).
I f th e fue l pressur e is lowe r tha n specified , inspec t for :
— Clogge d fue l filter .
— Fault y fue l pressur e regulato r (se e pag e 11-128 ).
— Leakag e in th e fue l line . Inspectio
n (model s withou t servic e bolt )
1 . Reliev e fue l pressur e (se e pag e 11-124 ).
2 . Remov e th e 1 2 m m banj o bol t fro m th e fue l filte r
while holdin g th e fue l filte r wit h anothe r wrench .
Attach th e specia l tool .FUELPRESSUR EGAUGE07406 - 004000 1
FUEL PRESSUR EREGULATO R
CLAMP
FUEL PRESSUR E ADAPTE RBOLT, 1 2 m m(9000 8 -PD6 - 010 )
3. Star t th e engine . Measur e th e fue l pressur e wit h th e
engin e idlin g an d th e vacuu m hos e o f th e fue l pres -
sur e regulato r disconnecte d fro m th e fue l pressur e
regulato r an d pinched . I f th e engin e wil l no t start ,
turn th e ignitio n switc h O N (II) , wai t fo r tw o sec -
onds , tur n i t off , the n bac k o n agai n an d rea d th e
fue l pressure .
Pressur e shoul d be :
29 4 - 34 3 kP a (3. 0 - 3. 5 kgf/cm
2, 4 3 - 5 0 psi )
4 . Reconnec t vacuu m hos e to th e fue l pressur e regula -
tor.
Pressur e shoul d be :
23 0 - 27 9 kP a (2.3 5 - 2.8 5 kgf/cm2,3 3 - 4 1 psi )
I f th e fue l pressur e is no t a s specified , firs t chec k th e fue l
pum p (se e pag e 11-130 ). I f th e fue l pum p i s OK , chec k
the following :
If th e fue l pressur e is highe r tha n specified , inspec t for :
— Pinche d o r clogge d fue l retur n hos e o r line .
— Fault y fue l pressur e regulato r (se e pag e 11-128 ).
I f th e fue l pressur e is lowe r tha n specified , inspec t for :
— Clogged fuel filter .
— Fault y fue l pressur e regulato r (se e pag e 11-128 ).
— Leakag e in th e fue l line .
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13. To prevent damage to the O-rings, install the fuel injectors in the fuel rail first, then install them in the intake mani-

fold.

'95 - 96 models only:

14. Align the center line on the connector with the mark on the fuel rail ('95 - 96 models only).

15. Install and tighten the retainer nuts.

16. Connect the fuel hose to the fuel rail with new washers.

17. Connect the No. 7 vacuum hose and fuel return hose to the fuel pressure regulator.

18. Install the connectors on the fuel injectors.

19. Install the engine harness cover.

20. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for approximately two seconds,

the fuel pressure in the fuel line rises. Repeat this two or three times, then check whether there is any fuel leakage.
FUEL

INJECTOR
MARKINGS
FUEL

RAILProCarManuals.com

Fuel Suppl y Syste m
Fuel Pressur e Regulato r
Descriptio n
Th e fue l pressur e regulato r maintain s a constan t fue l
pressur e t o th e fue l injectors . Whe n th e differenc e be -
twee n th e fue l pressur e an d manifol d pressur e exceed s
29 4 kP a (3. 0 kgf/cm
2, 4 3 psi) , th e diaphrag m is pushe d
upward , an d th e exces s fue l i s fe d bac k int o th e fue l tan k
throug h th e retur n line .
CLOSED :
INTAKE MANIFOL DVACUUM
DIAPHRAG M
FUELINLE T
OPEN :INTAK E MANIFOL DVACUUM
FUEL RETUR N DIAPHRAG
M
FUE L
INLE T
Testin g
Do no t smok e durin g th e test . Kee p ope n
flame s awa y fro m you r wor k area .
1 . Attac h th e specia l too l t o th e servic e por t (model s
wit h servic e bolt ) o r th e fue l pressur e adapte r bolt ,
1 2 mm , (9000 8 - PD 6 - 010 ) (model s withou t servic e
bolt ) o n th e fue l filte r (se e pag e 11-124 ).
Pressur e shoul d be :
29 4 - 34 3 kP a (3. 0 - 3. 5 kgf/cm
2, 4 3 - 5 0 psi )
(wit h th e fue l pressur e regulato r vacuu m hos e dis -
connecte d an d pinched )
FUELPRESSUR EGAUGE07406-004000 1
FUEL PRESSUR EREGULATO R
FUEL PRESSUR E ADAPTE R
BOLT , 1 2 m m
(9000 8 -PD6 - 010 )
2. Reconnec t th e vacuu m hos e t o th e fue l pressur e
regulator .
3 . Chec k tha t th e fue l pressur e rise s whe n th e vacuu m
hos e fro m th e fue l pressur e regulato r i s disconnect -
e d again .
• I f th e fue l pressur e di d no t rise , replac e th e fue l
pressur e regulator .
CLAMP
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Fuel Filte r
Replacemen t
Do no t smok e whil e workin g o n fue l system .
Kee p ope n flam e awa y fro m you r wor k area .
• Whil e replacin g th e fue l filter , b e carefu l t o kee p a saf e
distanc e betwee n batter y terminal s an d an y tools .
Th e fue l filte r shoul d b e replace d wheneve r th e fue l pres -
sur e drop s belo w th e specifie d valu e [29 4 - 34 3 kPa ,
3. 0 - 3. 5 kgf/cm
2, 4 3 - 5 0 ps i wit h th e fue l pressur e regula -
to r vacuu m hos e disconnecte d an d pinched ] afte r makin g
sur e tha t th e fue l pum p an d th e fue l pressur e regulato r
are OK .
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 -
set buttons .
2. Disconnec t th e batter y negativ e cabl e fro m th e bat -
ter y negativ e terminal .
3 . Plac e a sho p towe l unde r an d aroun d th e fue l filter .
4 . Reliev e fue l pressur e (se e pag e 11-124 ).
5 . Remov e th e banj o bol t (model s wit h servic e bolt ) o r
1 2 m m banj o bol t (model s withou t servic e bolt ) an d
th e fue l fee d pip e whil e supportin g th e fue l filte r
wit h anothe r wrench , a s shown .
6 . Remov e th e fue l filte r clam p an d fue l filter .
7 . Instal l th e ne w fue l filte r i n th e revers e orde r of
removal , an d not e thes e items :
• Whe n assembling , us e ne w washer s a s shown .
• Clea n th e flare d join t o f hig h pressur e hose s
thoroughl y befor e reconnectin g them .
8 . Ente r th e anti-thef t cod e fo r th e radio , the n ente r th e
customer' s radi o statio n presets .
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Ascending Control

When the TCM determines that the vehicle is climbing a hill in position, the system extends the engagement area of

3rd gear to prevent the transmission from frequently shifting between 3rd and 4th gears, so the vehicle can run smooth

and have more power when needed.

NOTE:

Shift schedules between 3rd and 4th gear stored in the TCM enable the TCM's fuzzy logic to automatically select the

most suitable gear according to the magnitude of a gradient.

Fuzzy logic is a form of artificial intelligence that lets computers respond to changing conditions much like a human

mind would.

Descending Control

When the TCM determines that the vehicle is going down a hill in position, the shift-up speed from 3rd to 4th gear

when the throttle is closed becomes faster than the set speed for flat road driving to widen the 3rd gear driving area.

This, in combination with engine braking from the deceleration lock-up, achieves smooth driving when the vehicle is

descending.

There are two ascending modes with different 3rd gear driving areas according to the magnitude of a gradient stored in

the
TCM.

When the vehicle is in 4th gear, and you are decelerating on a gradual hill, or when you are applying the brakes on a steep

hill, the transmission will downshift to 3rd gear. When you accelerate, the transmission will then return to 4th gear.

ASCENDING MODE
DESCENDING MODE

• Deceleration Control

When the vehicle goes around a corner, and needs to decelerate first and then accelerate, the TCM sets the data for deceleration

control to reduce the number of times the transmission shifts. When the vehicle is decelerating from speeds above 30 mph

(48 km/h), the TCM shifts the transmission from 4th to 2nd earlier than normal to cope with upcoming acceleration.ProCarManuals.com

Diagnostic
Troubl e Cod e
(DTC) *
P1794
(13)
P178 6
(14)
P071 5
(15)
P176 8
(16)
P178 7
(18)
P074 0
(none )
P0730
(none )
Indicato r
Light
Blink s
Blinks
'95, '96 , '97
model s
OFF
'98 mode l
Blink s
Blinks
OFF
OF F
OFF
Sympto m
• N o specifi c sympto m appears .
• Transmissio n jerk s har d whe n
shifting .
• Transmissio n jerk s har d whe n
shifting .
• Lock-u p clutc h doe s no t engage .
• Fail s t o shif t (stuc k in 4t h gear) .
• Lock-u p clutc h doe s no t engage .
• Lock-u p clutc h doe s no t hav e
duty operatio n (O N OFF )
• Lock-u p clutc h doe s no t engage .
• Fail s t o shif t (betwee n 1s t -2nd,
1s t - 2n d - 3rd , 1st - 2nd - 4th , 1st
- 3r d - 4th , 2n d - 3r d - 4t h gear s
only) .
• Fail s t o shif t (stuc k in 1s t gear) .
Possibl e Caus e
• Shor t o r ope n in BARO S S (RED/BLU )
wir e betwee n B 2 termina l an d EC M
• Fault y barometri c pressur e (BARO )
sensor
NOTE : BAR O senso r i s buil t int o ECM .
• Shor t o r ope n in FA S (PNK ) wir e
betwee n B1 9 termina l an d EC M
• Fault y EC M
• Disconnecte d mainshaf t spee d senso r
connecto r
• Shor t o r ope n in mainshaf t spee d sen -
so r wir e
• Fault y mainshaf t spee d senso r
• Disconnecte d linea r solenoi d connecto r
• Shor t o r ope n in linea r solenoi d wir e
• Fault y linea r solenoi d
• Disconnecte d o r loose d P G termina l
• Shor t o r ope n in FF S (RED/GRN ) wir e
betwee n A2 4 termina l an d EC M
• Fault y EC M
• Fault y TC M
• Fault y lock-u p contro l syste m
• Fault y shif t contro l syste m
Refer t o
Pag e
14-7 6
14-77
14-7 9
14-8 1
14-8 3
14-8 4
14-8 5
(DTC)* : Th e DTC s i n parenthese s ar e th e code s o f th e indicato r ligh t indicate s whe n th e servic e chec k connecto r i s con -
necte d t o th e specia l too l (SC S servic e connector) .
If th e self-diagnosti c indicato r ligh t doe s no t blink , perfor m a n inspectio n accordin g t o th e tabl e below .
Sympto m
indicator ligh t doe s no t com e o n fo r tw o second s afte r ignitio n
switc h i s firs t turne d o n (II) .
indicato r ligh t i s o n constantl y (no t blinking ) wheneve r th e ignitio n
switch i s o n (II) .
Shif t leve r canno t b e move d fro m positio n wit h th e brak e peda l
depressed . Inspectio
n
Chec k brak e switc h signal . Ref
. pag e
14-86
14-8 8
14-8 9
NOTE :
If a custome r describe s th e sympto m fo r cod e P179 0 (3) , bu t th e indicato r ligh t i s no t blinking , P170 6 (6 ) o r P072 5
(11) , i t wil l b e necessar y t o recreat e th e sympto m b y test-driving , the n rechec k th e DTC .
Sometime s th e indicato r ligh t an d th e Malfunctio n Indicato r Lam p (MIL ) ma y com e o n simultaneously . I f so , repai r
th e PGM-F I syste m accordin g t o th e DTC , the n rese t th e memor y b y removin g th e BAC K U P RADI O fus e i n th e under -
das h fuse/rela y bo x fo r mor e tha n 1 0 seconds . Driv e th e vehicl e fo r severa l minute s a t a spee d ove r 3 0 mp h (5 0 km/h) ,
the n rechec k th e DTC .
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Front Brake Caliper

Reassembly

Never use an air hose or dry brush to clean brake assemblies.

Use an OSHA-approved vacuum cleaner to avoid breathing brake dust.

Contaminated brake discs or pads reduce stopping ability.

When reusing the pads, always reinstall the brake pads in their original positions to prevent loss of braking efficiency.

CAUTION:

Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid does contact the paint, wash it off imme-

diately with water.

Clean all parts in brake fluid and air dry; blow out all passages with compressed air.

Before reassembling, check that all parts are free of dust and other foreign particles.

Replace parts with new ones whenever specified to do so.

Make sure no dirt or other foreign matter is allowed to contaminate the brake fluid.

Always use Genuine Honda DOT 3 Brake Fluid. Using a non-Honda brake fluid can cause corrosion and decrease the

life of the system.

NOTE:

Coat piston, piston seal, and caliper bore with clean brake fluid.

Replace all rubber parts with new ones whenever disassembled.

: Use recommended rubber grease in the caliper seal set.

: Use recommended seal grease in the caliper seal set.

WEAR INDICATOR

Install inner pad with

its wear indicator upward.

BRAKE PADS

('97-98 models)
CALIPER PIN B PIN BOOTS

Replace.

INNER PAD SHIM B
CALIPER BRACKET MOUNTING BOLT

108 N-m (11.0 kgf-m, 80 Ibf-ft)

INNER PAD SHIM A

BLEED SCREW

9 N-m (0.9 kgf-m, 6.5 Ibf-ft)

CALIPER BODY

CALIPER BOLT

49 N-m (5.0 kgf-m,

36 Ibf-ft)
('95 - 96 models)

PAD SPRING
CALIPER BRACKET

PAD RETAINERS

PISTON

PISTON SEAL

Replace.
PISTON BOOT

Replace.
OUTER PAD SHIM

CALIPER PIN AProCarManuals.com