TOYOTA CAMRY V20 1986 Service Information

Check that there is voltage between ECU terminal +B
(+B1) and body ground. (IG SW ON)No voltage between ECU terminal THG and E2.
(IG SW ON)
Check wiring between ECU terminal E1 and body ground.
Check wiring between ECU and
EGR gas temp. sensor. Check EGR gas temp. sensor.
(See page FI±126)
Replace EGR gas
temp. sensor.Refer to No. 1.
(See page FI±32)
Check EGR system.Repair or replace.
Repair or replace.
Repair or replace.
Try another ECU.
BAD
BAD
BAD BAD
± EFI SYSTEMTroubleshooting with Volt OhmmeterFI±67

ON±VEHICLE INSPECTION
INSPECT RESISTANCE OF COLD START INJECTOR
(a) Disconnect the cold start injector connector.
(b) Using an ohmmeter, measure the resistance between
the terminals.
Resistance: 2 ± 4

If the resistance is not as specified, replace the cold start
injector.
(e) Reconnect the cold start injector connector.
REMOVAL OF COLD START INJECTOR
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. DISCONNECT COLD START INJECTOR CONNECTOR
3. DISCONNECT COLD START INJECTOR PIPE
(a) Put a suitable container or shop towel under the injector
tube.
(b) Remove the two union bolts and four gaskets and injector
pipe. .
HINT: Slowly loosen the union bolt.
4. REMOVE COLD START INJECTOR
Remove the two bolts, cold start injector and gasket.
Cold Start Injector (3S±FE)
± EFI SYSTEMFuel System (Cold Start Injector (3S±FE))FI±78

INSPECTION OF COLD START
INJECTOR
1. INSPECT INJECTION OF COLD START INJECTOR
NOTICE: Keep clear for 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 (09268±41080)
(b) Connect SST (hose) to the unions.
SST 09268±41045
(c) Connect SST (wire) to the injector.
SST 09842±30050
(d) Put a container under the injector.
(e) Reconnect the battery negative (±) cable.
(f) Turn the ignition switch ON.
NOTICE: Do not start the engine.
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 H cable.
(c) Remove SST and the service wire.
SST 09268±41045 and 09842±30050(h) Connect the test probes of the SST (wire) to the
battery, and check that the fuel spray is as shown.
SST 09842±30050
NOTICE: Perform this check within the shortest pos-
sible time.
(g) Using SST, connect terminals +B and FP of the
check connector.
SST 09843±18020
± EFI SYSTEMFuel System (Cold Start Injector (3S±FE))FI±79

INSTALLATION OF COLD START INJECTOR
1. INSTALL COLD START INJECTOR
Install a new gasket and the injector with the two bolts.
Torque: 95 kg±cm (82 in.±Ib, 9.3 N±m)
3. CONNECT COLD START INJECTOR CONNECTOR
4. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY
5. CHECK FOR FUEL LEAKAGE (See page FI±9) 2. CONNECT COLD START INJECTOR PIPE
Install the injector pipe with new four gaskets and the two
union bolts.
Torque: 180 kg±cm (13 ft±lb, 18 N±m)
± EFI SYSTEMFuel System (Cold Start Injector (3S±FE))FI±80

ON±VEHICLE INSPECTION
INSPECT RESISTANCE OF COLD START INJECTOR
(a) Disconnect the cold start injector connector.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 2 ± 4


If the resistance is not as specified, replace the cold start
injector.
(e) Reconnect the cold start injector connector.
REMOVAL OF COLD START INJECTOR
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. DISCONNECT COLD START INJECTOR CONNECTOR
3. DISCONNECT COLD START INJECTOR TUBE
(a) Put a suitable container or shop towel under the injector tube.
(b) Remove the union bolt and two gaskets, and disconnect the
injector tube.
HINT: Slowly loosen the union bolt.
(e) Disconnect the injector tube from the clamp.
4. REMOVE COLD START INJECTOR
Remove the two bolts, cold start injector and gasket.
Cold Start Injector (2VZ±FE)
± EFI SYSTEMFuel System (Cold Start Injector (2VZ±FE))FI±81

INSPECTION OF COLD START
INJECTOR
1. INSPECT INJECTION OF COLD START INJECTOR
NOTICE: Keep clear for 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 (09268±41080)
(b) Connect SST (hose) to the unions.
SST 09268±41045
(e) Connect SST (wire) to the injector.
SST 09842±30050
(d) Put a container under the injector.
(e) Reconnect the battery negative (±) cable.
(f) Turn the ignition switch ON.
NOTICE: Do not start the engine.
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 (±) cable.
(c) Remove SST and the service wire.
SST 09268±41045,09842±30050 and 09843±18020 (h) Connect the test probes of the SST (wire) to the battery,
and check that the fuel spray is as shown.
SST 09842±30050
NOTICE: Perform this check within the shortest pos-
sible time.
(g) Using SST, connect terminals +B and FP of the check
connector.
SST 09843±18020
± EFI SYSTEMFuel System (Cold Start Injector (2VZ±FE))FI±82

2. CONNECT COLD START INJECTOR TUBE
(a) Connect the injector tube to clamp.
(b) Connect the injector tube with two new gaskets and the
union bolt.
Torque: 200 kg±cm (14 ft±Ib, 20 N±m)
3. CONNECT COLD START INJECTOR CONNECTOR
4. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY
5. CHECK FOR FUEL LEAKAGE (See page FI±9)
INSTALLATION OF COLD START
INJECTOR
1. INSTALL COLD START INJECTOR
Install a new gasket and the injector with the two bolts.
Torque: 55 kg±cm (48 in.±Ib, 5.4 N±m)
± EFI SYSTEMFuel System (Cold Start Injector (2VZ±FE))FI±83

2. DISCONNECT FUEL RETURN PIPE
(a) Put a suitable container or shop towel under the pressure
regulator.
(b) Remove the union bolt and two gasket, and disconnect the
return pipe from the pressure regulator.
HINT: Slowly loosen the union bolt.
REMOVAL OF FUEL PRESSURE
REGULATOR
1. DISCONNECT VACUUM SENSING HOSE
Fuel Pressure Regulator (3S±FE)
ON±VEHICLE INSPECTION
INSPECT FUEL PRESSURE (See page FI±70)
± EFI SYSTEMFuel System (Fuel Pressure Regulator (3S±FE))FI±84

INSTALLATION OF FUEL PRESSURE
REGULATOR
1. INSTALL FUEL PRESSURE REGULATOR
(a) Apply a light coat of gasoline to a new 0±ring, and
install it to the pressure regulator. 3. REMOVE FUEL PRESSURE REGULATOR
(a) Remove the two bolts, and pull out the pressure regulator.
(b) Remove the 0±ring from the pressure regulator.
2. CONNECT FUEL RETURN PIPE
Install the return pipe with two new gasket and the union
bolt.
Torque: 180 kg±cm (13 ft±Ib, 18 N±m)
3. CONNECT VACUUM SENSING HOSE
4. CHECK FOR FUEL LEAKAGE (See page FI±9) (b) Install the pressure regulator with the two bolts.
Torque: 55 kg±cm (48 in.±Ib, 5.4 N±m)
± EFI SYSTEMFuel System (Fuel Pressure regulator (3S±FE))FI±85

REMOVAL OF FUEL PRESSURE
REGULATOR
1. DISCONNECT VACUUM SENSING HOSE
2. DISCONNECT FUEL R RN HOSE
(a) Put a suitable container or shop towel under the
pressure regulator.
(b) Disconnect the return hose from the pressure regulator.
3. REMOVE FUEL PRESSURE REGULATOR
Loosen the lock nut, and remove the pressure regulator.
ON±VEHICLE INSPECTION
INSPECT FUEL PRESSURE (See page FI±70)
Fuel Pressure Regulator (2VZ±FE)
± EFI SYSTEMFuel System (Fuel Pressure Regulator (2VZ±FE))FI±86