1987 TOYOTA CELICA Service Repair Manual

EFI SYSTEM - Fuel System
-.
REMOVAL OF. INJECTOR
FI-87
1.
2.
3.
I A k DISCONNECT FOLLOWING CONNECTORS:
5.
8.
7. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
DRAIN COOLANT
DISCONNECT FOLLOWING HOSES:
l Water hoses from throttle body (7-M-GE) or water by-
pass pipe (‘IM-GTE)
0 Vacuum hoses from throttle body
0 ISC valve hoses from throttle body
0 Vacuum sensing hose from pressure regulator
0 Throttle position sensor connector
0 ISC valve connector
0 (‘IM-GE)
Cold start injector connector
REMOVE AIR INTAKE CONNECTOR
(7M-GE)
(a) Disconnect the air cleaner hose from the throttle
body.
(b) Remove the throttle body and air intake connector
brackets.
(c) Remove the four bolts and two nuts, intake connec-
tor and gasket.
(7M-GTE)
(See steps 1 to 3 on page EM-121
(‘IM-GTE)
REMOVE THROTTLE BODY (See page Fi-104)
REMOVE ISC VALVE
(a) Disconnect the No. 2 water by-pass hose from the
ISC valve.

EFI SYSTEM - Fuel System
(b) Remove the two bolts, ISC valve and gasket.
. .
,8. DISCONNECT INJECTOR CONNECTORS
c ‘_ -9. DISCONNECT COLD START INJECTOR TUBE FROM
,c . 1
: DELIVERY PIPE (See page FI-80)
,I--%
!
;‘,
IO. REMOVE NO.1 FUEL PIPE
(a) Remove the pulsation damper and two gaskets.
(b) Remove the union bolts and two gaskets from the
fuel pipe support (MA) or fuel filter (MS).
(cl ,Remove the clamp bolt, No.1 fuel pipe and VSV (w/
EGR).
11. -REMOVE NO.2 FUEL PIPE
(a) Remove the union bolt and two gaskets from the
::
pressure regulator.
(b) Pisconnect the fuel hose from the No.2 fuel pipe.
(cl Remove the clamp bolt and No.2 fuel pipe.
:,.,‘I 2. ,REMOVE PRESSURE REGULATOR
(a) Loosen the look nut.
(b) Remove the pressure regulator and two gaskets.

EFI SYSTEM
- Fuel System
FI-89
REMOVE DELIVERY PIPE
(a) Remove the three bolts, and then remove the delivery
pipe with injectors.
CAUTION:
Be careful not to drop the injectors, when
removing the delivery pipe.
(b) Remove the six insulators and three spacers from the
cylinder head.
14. REMOVE INJECTORS
(a) Pull out the injectors from the delivery pipe.
(b) Remove the O-ring from the injector.

EFI SYSTEM - Fuel System’
IkPECTlON OF INJECTOR
j; TEST INJECTION 0; INJECTORS
.WARNING: Keep clear of sparks during the test.
AS
i
c.
Disconnect SST
uel Filter
Fl197
Fl25-l
New
Union
Bolt
I
Fuel
Return-
Hose Pressure
Regulator
SST (Union)
SST (Hose) (a) Disconnect the No. 1 fuel pipe from the fuel return
pipe support (MA) or fuel filter (MS).
(b) Connect SST (hose) to the fuel pipe support (MA) or
fuel filter (MS) outlet with SST (union), new gaskets
and union bolt.
SST 0926841045
NOTE: Use the vehicle’s fuel support (MA) or fuel filter
(MS).
(c) Remove the pressure regulator (See page FI-84).
(d) Connect the fuel return hose to the pressure regula-
tor with SST (union), new gasket and union bolt.
SST 09268-41045
(e) Connect SST. (hose) to the pressure regulator with
SST (union).
SST 09268-41045

EFI SYSTEM - Fuel System
FI-91
SST
(Hose)
Vinyl Tube
R167r
FP
+B
SST (Resistor Wire)
Graduated
Cylinder
Vinyl Tube
fllB'I
(f) Connect the SST (hose) to the injector.
SST 0926841045
(g) Put the injector into the graduated cylinder.
NOTE: Install a suitable vinyl tube onto the injector to
prevent gasoline from splashing out.
(h) Connect the battery cable.
(i) Turn the ignition switch ON.
NOTE: Do not start the engjne. *
(j) Using a service wire, short circuit the fuel pump
check terminals +B and Fp of the service connector.
CHECK CONNECTOR LOCATION:
Se6 pages Fl-110, 111
(k) Connect SST (resistor wire) to the injector and bat-
tery for 15 seconds and measure the injection
volume with a graduated cylinder.
Test each injector two or three times.
SST 09842-30060
Volume:
7M-GE
65 - 60 cc (4.0 - 4.9 cu in.) per 15 sec.
7M-GTE
101 - 114 cc (6.2 - 7.0 cu in.1 per 15 sec.
Difference between each injector:
9 cc (0.5 cu in.1 or less,
If the injection volume is not as specified, replace the
injector.
INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of
SST (wire) from the battery and check for fuel
leakage from the injector nozzle.
SST 09842-30060
Fuel drop: One drop or less per minute
(b) Disconnect the battery negative (-1 cable.
(c) Remove the SST and service wire.
SST 09268-41045

EFI SYSTEM - Fuel System
INSTALLATION OF- INJECTORS
Grorhnet F11877 I
/ Grom ing DelLery
(eq,
i
NG
(b) Apply a light coat of gasoline to a O-ring and install it
to the injector.
(c) While turning the injector left and right, install it to
the delivery pipe. Install the six injectors.
Fll67,
1. INSTALL INJECTORS INTO DELIVERY PIPE
(a) Install a new grommet to the injector.
Black Ring 2. INSTALL DELIVERY PIPE WITH INJECTORS
(a) Install the six insulators into the injector hole of the
cylinder head.
(b) Install the black rings on the upper portion of each of
the three spacers. Then install the spacers on the
delivery pipe mounting hole of the cylinder head.
(c) Place the injectors together with the delivery pipe on
the cylinder head.
(d) Check that the injectors rotate smoothly.
NOTE: If the injectors do not rotate smoothly, the proba-
ble cause is incorrect installation of O-rings. Replace 0-
rings.

EFI SYSTEM - Fuel System
FI-93
-_
Pressure Requlator
Deb/Try Pipe
Front C
(e) Install the three spacers and bolts.
Torque the bolts.
Torque:
180 kg-cm (13 ft-lb, 18 N-m)
1.
3. 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 direction indicated in the
figure.
/ FI172
4.
5. (d) Torque the lock
nut.
Torque:
250 kg-cm (18 ft-lb, 25 N-m)
INSTALL NO. 2 FUEL PIPE
(a) Install the No. 2 fuel pipe and clamp bolt.
(b) Connect the fuel hose.
(cl Install the union bolt and new two gaskets to
pressure regulator. Torque the union, bolt.
Torque:
250 kgicm (18 ft-lb, 25 N*m) the’
INSTALL NO. 1 FUEL PIPE
(a) Install the No. 1 fuel pipe, VSV (w/ EGR) and clamp
bolt.
(b) Install the union bolt and two new gaskets to the fuel
pipe support. Torque the union bolts.
Torque: 300 kg-cm (22 ft-lb, 29 N.m)
(cl Install the pulsation damper and two new gaskets.
Torque the pulsation damper.
Torque:
400 kg-cm (29 ft-lb, 39 Nmrn)

EFI SYSTEM - Fuel Svstem ’
kValve . . ..
6. CONNECT INJECTOR CONNECTORS
7. CONNECT COLD START INJECTOR TUBE TO
,.
DELIVERY PIPE
(See page FI-83)
8. INSTALL ISC VALVE
(a) Install a new gasket and ISC valve with the two bolts.
Torque: 130 kg-cm (9 ft-lb, 13 Nmrn)
(b) Connect No. 2 water by-pass hose to the ISC valve.
9. (7M-GTE)
INSTALL THROTTLE BODY
(See step 1 on page FI-106) _
10. INSTALL AIR INTAKE CONNECTOR
(7M-GE)
(a) Install a new gasket and air intake connector with the
four bolts and two nuts.
Torque: 180 kg-cm (13 ftdb, 18 Nmrn)
(b) Install- the air intake connector and throttle body
brackets.
(c) Connect th,a air cleaner hose to the throttle body.
(7M-GTE)
(See page EM-141