1987 TOYOTA CELICA Service Repair Manual

EFI SYSTEM - Fuel System
FI-79
. .
/
A Fulcrum Length
2 - 7 mm (0.08 1 0.28 in.)
Pipe Hose
k ’
em -m-d-‘,
--
0 - 3 mm (0 - 0.12 in.) 6. REMOVE FUEL PUMP FILTER FROM FUEL PUMP
(a) Remove the rubber cushion.
(b) Using a‘small screwdriver, remove the clip.
(4 Pull out the pump filter.
INSTALLATION OF FUEL PUMP
(See page Fi-78)
1.
2. INSTALL FUEL PUMP FILTER TO FUEL PUMP
(a) Install’the pump filter with the clip.
(b) install the rubber cushion.
INSTALL FUEL PUMP TO FUEL PUMP BRACKET
(a) Insert the outlet port of the fuel pump into the fuel
hose.
(b) Push the lower side of the fuel pump and install the
fuel pump.
3. INSTALL FUEL PUMP BRACKET
Install a new gasket and the pump bracket with the
screws.
Torque: 35 kg-cm (30 in-lb, 3.4 N-m)
4.
INSTALL FUEL TANK
(a) Apply a thin coat of oil to the flare and tighten the
flare nut.
(b) Then using SST, tighten the nut to the specified tor-
que.
SST 09631~22020
Torque: 310 kg-cm (22 ft-lb, 30 N-m)
NOTE: Use a torque wrench with a fulcrum length 30 cm
(1 1 .181 in.).
CAUTION:
l Tighten the fuel tank mounting bolts, etc. to the
specified torque.
l Tighten ‘the pipe union and flare nut (hose) to the
specified torque.
l Push in the pipe and insert-type hose to the
specified position, and install the clip to the
specified location.
l If reusing the hose, reinstall the clip at the original
location,
5. REFILL GASOLINE
6. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY

EFI SYSTEM - Fuel System
Cold Start Injector
I Plunger H
+B
*--!1?-- lgnlrlon
Switch Cold Start
sisrt InioFtnr I --.- -.. injector V.“. . .I .,Y”....
Time Switch
1 7
ON-VEHICLE INSPECTION (7M-GE Only)
INSPECT RESISTANCE OF COLD START INJECTOR
(a) Disconnect the cold start injector connector.
(b) Using an ohmmeter, measure the resistance of the
injector.
Resistance: 2 - 4 fi
If the resistance is not as specified, replace the cold start
injector.
(c) Connect the cold start injector connector.
REMOVAL OF COLD START INJECTOR
1.
2.
3. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
(7M-GE)
DISCONNECT COLD START INJECTOR CONNECTOR
REMOVE COLD START INJECTOR TUBE
(‘IM-GE)
(a) Place a suitable container or shop towel under the
cold start injector tube.
(b) Slowly loosen the two union bolts of the cold start
injector tube and remove the bolts, four gaskets and
injector tube.
(7M-GTE)
(a) Place a suitable container or shop towel under the
cold start injector.
(b) Slowly loosen the union bolt of the cold start injector
tube and remove the bolt and two gaskets from the
cold start injector.

EFI SYSTEM - Fuel System
Fl-81
4.
Union Bol
Gasket
F1298
(c) Remove the union bolt, fuel tube and two gaskets.
REMOVE COLD START INJECTOR
(7~-GE)
Remove the two bolts and cold start injector with the
gasket.
(7M-GTE)
Remove the two bolts and cold start injector with the
gasket, and disconnect the cold start injector connector.
INSPECTION OF COLD START INJECTOR
1.
(7M-GTE)
INSPECT RESISTANCE OF COLD START INJECTOR
Using an ohmmeter, check the resistance of the injector.
Resistance: 2 - 4 fi
If the resistance is not as specified, replace the cold start
injector.
2.
INSPECT INJECTION OF COLD START INJECTOR
WARNING: Keep clear of sparks during the test.
(a) Install SST (two unions) to the injector and delivery
pipe with new gaskets and the union bolts.
SST 09268-41045
(b) Connect the SST (hose) to the unions.
SST 09268-41045
(c) Connect the SST (wire) to the injector,
SST
09847-RnnKn

Fl-82 EFI SYSTEM - Fuel System
(d) Put a container under the injector.
(e) Reconnect the battery negative (-1 terminal.
(f) Turn the ignition switch ON.
NOTE: Do not start the engine.
Fl298:
!g) Using a service wire, short terminals +B and FP of
the check connector.
CHECK CONNECTOR LOCATION:
See pages ‘FI-j 10, 111
(h) Connect the test probes of the SST (wire) to the bat-
tery, and check that the fuel spray is as shown.
SST 09842-30050
CAUTION: Perform this check within the shortest
possible time.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of
SST (wire) from the battery and check fuel leakage
from the injector.
SST 09842-30050
Fuel drop: One drop or less per minute
(b) Disconnect the battery negative (-1 cable.
(c) Remove SST and the service wire.
SST 09268-41045 and 09842-30050

EFI SYSTEM - Fuel System
FI-83
. .
INSTALLATION OF COLD START INJECTOR
1.
INSTALL COLD START INJECTOR
(7M-GE)
Install a new gasket and the the cold start injector with the
,
two bolts.
Torque: 55 kg-cm (48 in.-lb, 5.4 Nqm)
2.
3.
4.
. .
5. (7M-GTE)
(a) Connect the connector to the cold start injector.
(b) Install a new gasket and the the cold start injector
with the two bolts.
,Torque: 55 kg-cm 148 in.-lb, 5.4 N-m)
INSTALL COLD START INJECTOR TUBE
Using new gaskets, connect the cold start injector tube to
the delivery pipe and cold start injector. Install the union
bolts.
Torque:
Delivery pipe side
300 kg-cm
(22 ft-lb, 29 N-m)
Cold start injector side 180 kg-cm
(13 ft-lb, 18 N-m)
17M-GE)
CONNECT COLD START INJECTOR CONNECTOR
CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY
CHECK FOR FUEL LEAKAGE

l-84 EFI SYSTEM - Fuel System’
-.
Pressure Regulator
._
Spring-
Valve- Pressure Regulator
I
-Diaphragm
TO RETURN
PIPE
FROM DELIVERY
PIPE
No. 2. Fuel Pipe
I31659 Fl168'
ON-VEHICLE INSPECTION
INSPECT FUEL PRESSURE (See page FI-74)
REMOVAL OF PRESSURE REGULATOR
1. DISCONNECT PCV HOSE
2. DISCONNECT VACUUM SENSING HOSE
3. DISCONNECT NO.2 FUEL PIPE
(4
Place a suitable container or shop towel under the
pressure regulator.
(b) Remove the union bolt and two gaskets.
(cl
Remove the clamp bolt of the No.2 fuel pipe.
4.
REMOVE PRESSURE REGULATOR
Loosen the lock nut, and remove the pressure regulator.
,

EFI SYSTEM - Fuel Svstem
FI-85
Pressure Regulator
Front 4
Delivery Pipe
fl1m:
FI166:
INSTALLATION OF PRESSURE REGULATOR
1. INSTALL PRESSURE REGULATOR
(a) Fully loosen the lock nut of the pressure regulator.
(b) Thrust the pressure regulator completely into, the
delivery pipe by hand.
(c) Turn the pressure regulator counterclockwise until
the outlet faces in the directi,on indicated in the
figure.
(d) Torque the lock nut.
Torque:
250 kg-cm (18 ft-lb, 25 N-m)
2.
CONNECT NO. 2 FUEL PIPE
(a) Using new gaskets, connect the No. 2 fuel pipe to the
pressure regulator. Install the union bolt.
Torque: 250 kg-cm (18 ft-lb, 25 N*mI
(b) Install the clamp bolt.
3. CONNECT VACUUM SENSING HOSE
4.
CONNECT PCV HOSE

EFI SYSTEM - Fuel System
-.
Injectors --

Coil
1 ON-VEHICLE tNSPkTlON
1.
2. CHECK INJECToR OPERATION
Check operation sound from each injector.
(a) With the engine running or cranking, use a sound
scope to check that there is normal operating noise in
proportion to engine rpm.
(b) If you have no sound scope, you can check the injec-
tor transmission operation with your finger.
If no sound or an unusual sound is heard, check the wiring
connector, injector, resistor or injection signal from the
ECU.
INSPECT RESISTANCE OF INJECTOR
(a) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance of both
terminals.
Resistance:
7M-GE 1.8 - 3.4 n
7M-GTE 2.0 - 3.8 Q
If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.