1995 ACURA TL battery

Idle Contro l Syste m
Alternato r (ALT ) F R Signa l
This signal s th e EC M whe n th e Alternato r (ALT ) i s charging .
Is ther e approx . 5 V ?
Chec k th e operatio n o f th e ALT :
1 . Tur n th e ignitio n switc h OFF .
2 . Reconnec t th e AL T GR N 4 P
connecto r t o th e ALT .
3 . Star t th e engine . Hol d th e
engin e a t 3,00 0 rp m wit h n o
loa d (transmissio n in o r
position ) unti l th e radiato r fa n
come s on , the n le t i t idle .
4 . Measur e voltag e betwee n EC M
connecto r terminal s D 5 an d A26 .
Doe s th e voltag e decreas e whe n
headlight s an d rea r defogge r ar e
turne d on ?
Chec k fo r a n ope n in th e wir e (AL T
F line) :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e negativ e bat -
ter y cabl e fro m th e battery .
3 . Disconnec t th e EC M connec -
tor D (22P) .4. Disconnec t th e GR N 4 P con -
necto r fro m th e ALT .
5 . Connec t th e AL T 4 P connecto r
termina l No . 4 to bod y groun d
with a jumpe r wire .6. Chec k fo r continuit y betwee nbody groun d an d EC M con -necto r termina l D5 .
I s ther e continuity ?
Se e th e AL T inspectio n (se e
sectio n 23 ). EC
M CONNECTOR S
A (26P)D (22P)
Wire sid e o f femal e terminal s
D (22P)
Repai r shor t i n th e wir e betwee nthe EC M (D5 ) and th e ALT .
ALT F R signa l i s OK .
ALT GR N 4P CONNECTO R (C127 )
JUMPE R WIR E
Wir e sid e o f femal e terminal s
Repai r ope n wir e betwee n th e
ECM (D5 ) and th e ALT .
ECM CONNECTO R D (22P )
Wir e sid e o f femal e terminal s
Substitut
e a known-goo d EC M
an d recheck . I f prescribe d voltag e
i s no w available , replac e th e origi -
nal ECM .
Is ther e continuity ?
Chec
k fo r a shor t i n th e wir e (AL T
F line) :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e negativ e bat -
ter y cabl e fro m th e battery .
3 . Disconnec t th e EC M connecto r
D (22P) .4. Chec k fo r continuit y betwee n
bod y groun d an d EC M con -
necto r termina l D5 .
Chec
k fo r a shor t i n th e wir e (AL T
F line) :
1 . Disconnec t th e GR N 4 P con -
necto r fro m th e ALT .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Measur e voltag e betwee n EC M
connecto r terminal s D 5 an d A26 .
Inspectio
n o f AL T F R Signal .
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Before connecting a new fuel tube/quick-connect fitting

assembly, remove the old retainer from the mating pipe.

With the

tabs pulled

apart, pull

the retainer

off

New FUEL TUBE/

QUICK-CONNECT

FITTING ASSEMBLY

3. Align the quick-connect fittings with the pipe, and

align the retainer locking pawls with the connector

grooves. Then press the quick-connect fittings onto

the pipe until both retainer pawls lock with a click-

ing sound.

NOTE: If it is hard to connect, put a small amount of

new engine oil on the pipe end.

Connection with new retainer:

CONNECTOR

RETAINER

PIPE

CONNECTOR

RETAINER

PIPE
4. Make sure the connection is secure and the pawls

are firmly locked into place; check visually and by

pulling the connector.

Pull apart.

CONNECTOR

RETAINER

PIPE

Reconnect the battery negative cable, and turn the

ignition switch ON (II) the fuel pump will run for about

two seconds, and fuel pressure will rise. Repeat two

or three times, and check that there is no leakage in

the fuel supply system.

Reconnection to existing retainer: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

PGM-FI Main Relay

Description

The PGM-FI main relay actually contains two individual

relays. This relay 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

fuel injectors, and power for 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-FI

MAIN RELAY

FUEL PUMP
Relay Testing

NOTE: If the car starts and continues to run, the PGM-FI

main relay is OK.

1. Remove the PGM-FI 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-FI main relay. Then check for

continuity between the No. 5 terminal and No. 4 ter-

minal of the PGM-FI main relay.

If there is continuity, go on to step 3.

If there is no continuity, replace the PGM-FI main

relay and retest.

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-FI main relay. Then check that

there is continuity between the No. 7 terminal and

No. 6 terminal of the PGM-FI main relay.

If there is continuity, go on to step 4.

If there is no continuity, replace the PGM-FI main

relay and retest.

4. Attach the battery positive terminal to the No. 6 ter-

minal and the battery negative terminal to the No. 1

terminal of the PGM-FI main relay. Then check that

there is continuity between the No. 5 terminal and

No. 4 terminal of the PGM-FI main relay.

If there is continuity, the PGM-FI main relay is OK.

If there is no continuity, replace the PGM-FI main

relay and retest.ProCarManuals.com

Transmission
Removal
Make sur e lift s ar e place d properly , an d
hois t bracket s ar e attache d t o th e correc t positio n o n
th e engin e (se e sectio n 1 ).
CAUTION : Us e fende r cover s t o avoi d damagin g painte d
surfaces .
1. Befor e disconnectin g power , 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
the frequencie s fo r th e radio' s prese t buttons .
2. Disconnec t th e batter y negativ e (- ) termina l fro m
th e battery , the n remov e th e positiv e (+ ) terminal .
3 . Remov e th e batter y hold-dow n bracke t an d battery .
4. Disconnec t th e ignitio n coi l wir e connector , an d
remov e i t an d th e engin e groun d cabl e fro m th e hea t
shiel d cover .
IGNITIO N COI LWIRE CONNECTO R HEA
T SHIEL D
COVE R
ENGIN EGROUN DCABLE
5. Remov e th e uppe r hea t shiel d cover , the n remov e th e
batter y base .
6 . Loose n th e lowe r hea t shiel d cove r bolts , the n remov e
th e lowe r hea t shiel d cover .
BATTER YBASE
UPPE R HEA T
SHIEL D COVE R
LOWE R HEA T
SHIEL D COVE R
7. Disconnec t th e connecto r fro m th e contro l box , an d
remov e th e contro l box .
CAUTION : D o no t disconnec t th e vacuu m hose s fro m
th e contro l box .
CONTRO L BO X
CONTRO L BO X CONNECTO R
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Throttle Valv e Body/Linea r Solenoi d
Test
1. Connec t th e linea r solenoi d harnes s t o th e linea r
solenoi d terminals .
2 . Connec t th e No . 2 (RED : + ) termina l o f th e linea r
solenoi d connecto r t o th e positiv e batter y termina l
an d th e No . 1 (WHT : - ) termina l t o th e negativ e bat -
ter y terminal . Chec k tha t th e throttl e valv e moves .
3 . Repea t th e abov e step s 1 an d 2 .
NOTE : Yo u ca n se e th e movemen t o f th e throttl e
valve throug h th e flui d passag e i n th e mountin g
surface o f th e throttl e valv e body .
LINEA R SOLENOI D
Replacemen t
LINEARSOLENOI DCONNECTO R
THROTTLEVALVEBODYThrottl e valv e move sin thi s directio nwhile connectin gthe battery .
WIRE SID E O FFEMAL E TERMINAL S
NOTE: D o no t adjus tor remove ; thi s isadjuste d a t th e factory .
4.
5 .
6.
If th e throttl e valv e binds , o r move s sluggishly , o r
th e linea r solenoi d doe s no t operate , replac e th e
throttl e valv e body/linea r solenoi d a s a n assembly .
If th e linea r solenoi d doe s no t operate , disconnec t
th e linea r solenoi d harnes s fro m th e linea r solenoi d
assembly . Connec t th e batter y directl y t o th e linea r
solenoid .
I f th e linea r solenoi d operate s afte r connectin g th e
battery , an d th e throttl e valv e movemen t i s OK ,
replac e th e linea r solenoi d harness . NOTE
: Throttl e valv e body/linea r solenoi d mus t b e
replace d a s a n assembly .
1 . Chec k th e throttl e valv e bod y passage s fo r dus t o r
dirt , an d replac e a s a n assembly , i f necessary .
2 . Clea n th e mountin g surfac e an d flui d passage s o f
th e throttl e valv e body .
3 . Assembl e th e throttl e valv e body/linea r solenoi d t o
th e 2n d accumulato r body .
FLANG E NUT S5 x 0. 8 m m6 N- m(0.6 kgf-m , 4 Ibf-ft )
LINEA R SOLENOI DHARNESS
THROTTL E VALV E BODY /LINEAR SOLENOI D ASSEMBL Y
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27. Attach the torque converter to the drive plate with

eight bolts and torque:

Rotate the crankshaft as necessary to tighten the

bolts to 1/2 of the specified torque, then to the final

torque, in a crisscross pattern.

After tightening the last bolt, check that the crankshaft

rotates freely.

DRIVE PLATE/

RING GEAR

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)
TORQUE CONVERTER

COVER

28. Install the torque converter cover.

29. Install the transmission ground cable.

TRANSMISSION GROUND CABLE

TRANSMISSION

SUB-HARNESS

CONNECTOR

30. Connect the transmission sub-harness connector.
31. Install the control box, then connect the connector.

CONTROL BOX

CONNECTOR

32. Install the lower heat shield cover.

33. Install the battery base and the upper heat shield.

6 x 1.0 mm

9.8 N-m (1.0 kgf-m,

7.2 Ibf-ft)

LOWER HEAT

SHIELD COVER

6 x 1.0 mm

9.8 N-m (1.0 kgf-m,

7.2 Ibf-ft)
UPPER HEAT

SHIELD COVER
8 x
1.25
mm

22 N-m (2.2 kgf-m,

16 Ibf-ft)
BATTERY

BASEProCarManuals.com

Differential Assembl y
Removal
Make sur e jack s an d safet y stand s ar e place d properly ,
and hois t bracket s ar e attache d to correc t position s
o n th e engine .
• Apply parkin g brak e an d bloc k rea r wheel s s o vehicl e
wil l no t rol l of f stand s an d fal l o n yo u whil e workin g
unde r it .
CAUTION : Us e fende r cover s to avoi d damagin g painte d
surfaces .
1. Befor e disconnectin g power , 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 prese t buttons .
2 . Disconnec t th e batter y negativ e (- ) an d positiv e (+ )
cable s fro m th e battery .
3. Remov e th e ai r cleane r housin g assembly .
4 . Remov e th e drai n plug , an d drai n th e differentia l oi l
(se e pag e 1 5-4 ).
5 . Remov e th e driveshaft s an d intermediat e shaf t (se e
sectio n 16 ).
6 . Remov e th e splas h guard .
SPLAS H GUAR D
7. Plac e the engin e on a transmissio n jack , the n lift th e
engin e slightl y t o unloa d th e mounts .
8 . Remov e th e lef t fron t engin e moun t bracket .
LEFT FRON T ENGIN EMOUNT BRACKE T
TRANSMISSIO NJACK
9. Remov e th e transmissio n moun t bea m an d transmis -
sio n moun t bracket .
TRANSMISSIO NMOUNT BRACKE T
TRANSMISSIO NMOUNT BEA M
SPECIA L BOLT SReplace .
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