TOYOTA CAMRY V20 1986 Service Information

INSTALLATION OF FUEL PRESSURE
REGULATOR
1. INSTALL FUEL PRESSURE REGULATOR
(a) Fully loosen the lock nut of the pressure regulator.
(b) Apply a light coat of gasoline to a new O±ring, and install
it to the pressure regulator.
(c) Thrust the pressure regulator completely into the deliv-
ery pipe by hand.
(d) Turn the pressure regulator counterclockwise until the
vacuum pipe faces in the direction indicated in the fig-
ure.
2. CONNECT FUEL RETURN HOSE
3. CONNECT VACUUM SENSING HOSE
4. CHECK FOR FUEL LEAKAGE (See page FI±9) (e) Tighten the lock nut.
Torque: 330 kg±cm (24 ft±Ib, 32 N±m)
± EFI SYSTEMFuel System (Fuel Pressure Regulator (2 Z±FE))FI±87

2. INSPECT INJECTOR RESISTANCE
(a) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance: Approx. 13.8


If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.
ON±VEHICLE INSPECTION
1. INSPECT 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 injector
transmission operation with your finger.
If no sound or an unusual sound is heard, check the wiring
connector, injector or injection signal from ECU.
Injectors (3S±FE)
± EFI SYSTEMFuel System (Injectors (3S±FE))FI±88

REMOVAL OF INJECTORS
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. DISCONNECT COLD START INJECTOR PIPE
(See steps 2 and 3 on page FI±78)
3. DISCONNECT VACUUM SENSING HOSE FROM FUEL
PRESSURE REGULATOR (See step 1 on page FI±84)
4. DISCONNECT INJECTOR CONNECTORS
5. DISCONNECT FUEL HOSE FROM FUEL RETURN PIPE
6. REMOVE FUEL PRESSURE PALSATION DAMPER
Remove the pulsation damper and two gaskets.
7. REMOVE DELIVERY PIPE AND INJECTORS
(a) Remove the two bolts and delivery pipe together with four
injectors.
NOTICE: Be careful not to drop the injectors, when remov-
ing the delivery pipe.
(b) Remove the four insulators and two spacers from the cylin-
der head.
(c) Pull out the four injectors from the delivery pipe.
(a) Disconnect the fuel hose from the fuel filter outlet.
(b) Connect SST (union and hose) to the fuel filter outlet with
two new gaskets and the union bolt.
SST 09268±41045 (90405±09015)
HINT: Use the vehicle's fuel filter.
INSPECTION OF INJECTORS
1. INSPECT INJECTOR INJECTION
NOTICE: Keep clear for sparks during the test.
± EFI SYSTEMFuel System (Injectors (3S±FE))FI±89

(k) Connect SST (wire) to the injector and battery for 15
seconds, and measure the injection volume with a gradu-
ated cylinder. Test each injector two or three times.
SST 09842±30070
Volume: 45 ± 55 cc (2.7 ± 3.4 cu in.) per 15 sec.
Difference between each injector:
5 cc (0.3 cu in.) or less
If the injection volume is not as specified, replace the injec-
tor.
2. INSPECT LEAKAGE.
(a) In the condition above, disconnect the. test probes of
SST (wire) from the battery and check the fuel leakage
from the injector.
SST 09842±30070
Fuel drop: One drop or less per minute
(b) Disconnect the battery negative (±) cable.
(c) Remove SST and the service wire.
SST 09268±4.1045 (e) Install a new O±ring to the injector.
(f) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09268±41045
(g) Put the injector into the graduated cylinder.
HINT: Install the a suitable vinyl hose onto the injector to
prevent gasoline from splashing out
(h) Reconnect the battery negative H cable.
(i) Turn the ignition switch ON.
HINT: Do not start the engine
(j) Using SST, connect terminals +B and FP of the check
connector.
SST 49843±18020 (e) Remove the pressure regulator. (See page FI±84)
(d) Connect the fuel return hose and SST (hose) to the
pressure regulator with SST (union), two new gaskets
and union bolt.
SST 09268±41045 (09268±41080, 09268±41090)
± EFI SYSTEMFuel System (Injectors (3S±FE))FI±90

(e) Place the four injectors together with the delivery pipe
in position on the cylinder head.
(f) Check that the injectors rotate smoothly.
HINT: If injectors do not rotate smoothly, the probable
cause is incorrect installation of O±rings. Replace the
O±rings.
(g) Position the injector connector upward.
INSTALLATION OF INJECTORS
1. INSTALL INJECTORS AND DELIVERY PIPE
(a) Install a new grommet to the injector.
(b) Apply a light coat of gasoline to a new O±ring and install it
to the injector.
(e) While turning the injector left and right, install it to the
delivery pipes. Install the four injectors.
(d) Place the four insulators and two spacers in position on
the cylinder head.
(h) Install the two bolt.
Torque: 130 kg±cm (9 ft±Ib, 13 N±m)
± EFI SYSTEMFuel System (Injectors (3S±FE))FI±91

3. CONNECT FUEL RETURN HOSE
4. CONNECT INJECTOR CONNECTORS
5. CONNECT VACUUM SENSING HOSE
6. CONNECT COLD START INJECTOR PIPE
(See steps 2 and 3 on page FI±80)
7. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY 2. INSTALL FUEL PRESSURE PULSATION DAMPER
Install a new gasket, the fuel hose, a new gasket and the
pulsation damper.
± EFI SYSTEMFuel System (Injectors (3S±FE))FI±92

2. INSPECT INJECTOR RESISTANCE
(a) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance: Approx. 13.8


If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.
ON±VEHICLE INSPECTION
1. INSPECT 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 injector
transmission operation with your finger.
If no sound or an unusual sound is heard, check the
wiring connector, injector or injection signal from ECU.
Injectors (2VZ±FE)
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±93

REMOVAL OF INJECTORS
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. DRAIN ENGINE COOLANT (See page CO±5)
3. (A/T)
DISCONNECT THROTTLE CABLE FROM THROTTLE
BODY AND BRACKET
4. DISCONNECT ACCELERATOR CABLE AND BRACKET
FROM THROTTLE BODY AND AIR INTAKE CHAMBER
5. REMOVE AIR CLEANER CAP, AIR FLOW METER AND
AIR CLEANER HOSE
(a) Disconnect the. air flow meter connector.
(b) Disconnect the air hoses.
(e) Loosen the air cleaner hose clamp bolt.
(d) Disconnect the air cleaner cap clips.
(e) Remove the air cleaner cap and air flow meter
together with the air cleaner hose.
6. DISCONNECT HOSES AND CONNECTORS
(a) PCV hoses
(b) Vacuum sensing hose
(e) Water by±pass hoses
(d) Fuel pressure control VSV hose
(e) Emission control vacuum hoses
(f) ISC connector
(g) Throttle position sensor connector
(h) (CALIF. only)
EGR gas temp. sensor connector
7. REMOVE NO. 1 RH ENGINE MOUNTING STAY
Remove the three bolts and mounting stay.
8. DISCONNECT COLD START INJECTOR CONNECTOR
9. DISCONNECT COLD START INJECTOR TUBE
(See step 3 on page FI±81 )
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±94

10. DISCONNECT HOSES AND PARTS
(a) Brake booster vacuum hose
(b) PS vacuum and air hoses
(c) Cruise control vacuum hose
(d) Ground strap connector
(e) Wire harness clamp
Remove the nut, and disconnect the wire harness clamp.
(f) Fuel pressure control VSV hose.
11. DISCONNECT WIRE HARNESS CLAMP
Remove the nut and disconnect the wire harness.
12. DISCONNECT EGR PIPE
13. REMOVE NO.1 ENGINE HANGER AND AIR INTAKE
CHAMBER STAY
(a) Remove the two bolts and No.1 engine hanger.
(b) Remove the bolt, and disconnect the air intake chamber
stay from air intake chamber.
14. REMOVE AIR INTAKE CHAMBER
Remove the two bolts, nuts, air intake chamber and gasket.
15. DISCONNECT CONNECTORS
(a) Cold start injector connector
(b) Water temperature sensor connector
(c) Six injector connectors
16. DISCONNECT WIRE HARNESS CLAMPS FROM LH
DELIVERY PIPE
Disconnect the three wire harness clamp.
17. DISCONNECT FUEL INLET AND TWO RETURN
HOSES
(a) Disconnect the fuel return hoses from the fuel pressure reg-
ulator and No.1 fuel pipe.
(b) Disconnect the fuel inlet hose from the fuel filter.
18. REMOVE NO.2 FUEL PIPE
Remove the two union bolts, four gaskets and No.2 fuel
pipe.
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±95

19. REMOVE DELIVERY PIPES AND INJECTORS
(a) Remove the two bolts and LH delivery pipe together with
three injectors.
NOTICE:. Be careful not to drop the injectors, when remov-
ing the delivery pipe.
(b) Remove the three bolts and RH delivery pipe with the
No. 1 fuel pipe and three injectors.
NOTICE: Be careful not to drop the injectors, when remov-
ing the delivery pipe.
(c) Pull out the six injectors from the delivery pipes.
(d) Remove the six insulators and four spacers from the intake
manifold.
(a) Disconnect the fuel hose from the fuel filter outlet.
(b) Connect SST (union and hose) to the fuel fitter outlet
with two new gaskets and the union bolt.
SST 49268±41045 (90405±09015)
HINT: Use the vehicle's fuel filter.
(e) Remove the pressure regulator. (See page FI±86)
(d) Connect the fuel return hose and SST (hose) to the
pressure regulator with SST (union).
SST 09268±41045 (09268±41060)
INSPECTION OF INJECTORS
1. INSPECT INJECTOR INJECTION
NOTICE: Keep clear for sparks during the test.
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±96