fuel cap TOYOTA CAMRY V20 1986 Service Information

1. Wiring connection
2. Power to ECU
(1) Fusible link(s)
(2) Fuse(s)
(3) ER main relay (See page FI±121)
3. Air flow meter (See page FI±104)
4. Water temp. sensor (See page FI±125)
5. Air temp. sensor (See page FI±104)
6. Injection signal circuit
(1) Injector wiring
(2) ECU (See page FI±130)
CHECK FUEL SUPPLY TO INJECTOR
1. Fuel tank
2. Fuel pressure in fuel line
(1) Short terminals +B and FP of the check connec-
tor.
(2) Fuel pressure at fuel return hose of fuel filter can
be felt. (See page FI±70)
1. ISC system
(1) Wiring connection(s)
(2) ISC valve (See page FI±116 or 118)
(3) ECU (test by substitution)
2. (3S±FE) ±
Idle speed ± Adjust (See page EM±19) 1. Fuel line leakage ± deformation
2. Fuse(s)
3. Fuel pump (See page FI±68)
4. Fuel filter
5. Fuel pressure regulator
(See page FI±86 or 88) 1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system EGR valve stays open CHECK EFI ELECTRONIC CIRCUIT USING
VOLT/OHMMETER
(See page FI±31)
CHECK DIAGNOSIS SYSTEM
Check for output of diagnosis code.
(See page FI±22)
CHECK FOR VACUUM LEAKS IN AIR
INTAKE LINE
SYMPTOM ± ENGINE OFTEN STALLS
CHECK IDLE SPEED
Standard: 700 + 50 rpmDiagnostic code(s) (See page FI±25 or 27)
OK CONTINUED FROM PAGE FI±12
OK CONTINUED ON PAGE FI±14Element ± Clean or replace
CHECK AIR FILTER
Malfunction
code(s)
Normal code
BADBAD
BAD
BADBAD
± EFI SYSTEMTroubleshootingFI±13

1. Wiring connection
2. Power to ECU
(1) Fusible link(s)
(2) Fuse(s)
(3) ER main relay (See page FI±121)
3. Air flow meter (See page FI±104)
4. Water temp. sensor (See page FI±125)
5. Air temp. sensor (See page FI±104)
6. Injection signal circuit
(1) Injection wiring
(2) ECU (See page FI±130)
7. Oxygen sensor(s)
(Seepage FI±129 or 131)
CHECK IGNITION TIMING
1. Connect terminals TE1 and E1 of the check con-
nector.
2. Check ignition timing.
Standard: 10
° BTDC @ idle
1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system ± EGR valve stays open
CHECK EFI ELECTRONIC CIRCUIT USING
VOLT/OHMMETER
(See page FI±31)
1. Cold start injector (See page FI±78 or 81)
2. Cold start injector time switch
(See page FI±124)
1. Fuel pump (See page FI±68)
2. Fuel filter
3. Fuel pressure regulator
(See page FI±84 or 86)
CHECK DIAGNOSIS SYSTEM
Check for output of diagnosis code.
(See page FI±22)
SYMPTOM ± ENGINE BACKFIRES± Lean Fuel Mixture
CHECK FOR VACUUM LEAKS IN AIR
INTAKE LINE
CHECK COLD START INJECTOR
(See page FI±78 or 81)
CHECK FUEL PRESSURE
(See page FI±70)
Diagnostic code(s) (See page FI±25 or 27)
Ignition timing ± Adjust
(See page IG±17 or 21)
CHECK INJECTORS
(See page FI±88 or 93)Injectors ± Clogged
Malfunction
code(s)
Normal code
BAD
BAD
BAD BAD
BAD
± EFI SYSTEMTroubleshootingFI±18

CHECK IGNITION TIMING
1. Connect terminals TE1 and E1 of the check
connector.
2. Check ignition timing.
Standard: 105BTDC @ idle
1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system EGR valve stays open
SYMPTOM ± ENGINE HESITATES AND/OR POOR ACCELERATION
1. Fuel pump (See page FI±68)
2. Fuel filter
3. Fuel pressure regulator
(See page FI±84 or 86)
CHECK DIAGNOSIS SYSTEM
Check for output of diagnosis code.
(See page FI±22) CHECK FOR VACUUM LEAKS IN AIR
INTAKE LINE
1. High±tension cords
2. Distributor
3. Ignition coil
4. igniterCHECK IGNITION SPARK
(See page IG±5 or 9)
CHECK FUEL PRESSURE
(See page FI±69)
Diagnostic code(s) (See page FI±25 or 27)
Ignition timing ± Adjust
(See page IG±17 or 21)
CHECK INJECTORS
(See page FI±88 or 93)
OK CONTINUED ON PAGE FI±21 CHECK CLUTCH AND BRAKES
1. Clutch Slips
2. Brakes ± Drag
Element ± Clean or replace
Malfunction
code(s)
Injector Clogged
CHECK AIR FI¿¿ER
Normal codeBAD
BADBAD
BADBAD BAD
± EFI SYSTEMTroubleshootingFI±20

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

16. CONNECT ACCELERATOR CABLE AND BRACKET TO
THROTTLE BODY AND AIR INTAKE CHAMBER
17. (A/T)
CONNECT THROTTLE CABLE TO THROTTLE BODY
AND BRACKET, AND ADJUST IT
18. FILL WITH COOLANT (See page CO±5)
19. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY 14. CONNECT CONNECTORS AND HOSES
(a) ISC connector
(b) Throttle position sensor connector
(c) (CALIF. only)
EGR gas temp. sensor connectors
(d) PCV hoses
(e) Vacuum sensing hoses
(f) Water by±pass hoses
(g) Fuel pressure VSV hose
(h) Emission control vacuum hoses
15. INSTALL AIR CLEANER CAP, AIR FLOW METER AND
AIR CLEANER HOSE
(a) Connect the air cleaner hose, and install the air
cleaner cap and air flow meter with the four clips.
(b) Tighten the air cleaner hose clamp bolt.
(c) Connect the air hoses.
(d) Connect the air flow meter connector. 11. CONNECT COLD START INJECTOR TUBE
(See step 2 on page FI±83)
12. CONNECT COLD START INJECTOR CONNECTOR
13. INSTALL NO. 1 RH ENGINE MOUNTING STAY
Install the mounting stay with the three bolts.
Torque: 530 kg±cm (38 ft±Ib, 52 N±m)
± EFI SYSTEMFuel System (Injectors (2VZ±FE))FI±100

INSPECTION OF FUEL VAPOR
LINES, FUEL TANK AND TANK CAP
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged if
necessary, repair or replace. the cap.
To reduce HC emission, evaporated fuel from the fuel tank is routed through the charcoal canister to the intake manifold for
combustion in the cylinders.
FUEL EVAPORATIVE EMISSION CONTROL (EVAP) SYSTEM
HC from canister is led into air
intake chamber.NC from tank is absorbed into
the canister.
HC from tank is absorbed into
the canister.
Air is led into the fuel tank. Throttle Valve
OpeningEvaporated Fuel (HO
High pressure
in tankAbove
54°C(129° F )
High vacuum
in tankBelow
35°C (95°F)Canister Check Valve
Check
Valve in
Cap Coolant
Temp.
svsv
± EMISSION CONTROL SYSTEMS (3S±FE)Fuel Evaporative Emission Control (EVAP) SystemEC±5

INSPECTION OF FUEL VAPOR LINES,
FUEL
TANK AND TANK CAP
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
To reduce HC emissions, evaporated fuel from the fuel tank is routed through the charcoal canister to the intake manifold for
combustion in the cylinders.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
FUEL EVAPORATIVE EMISSION CONTROL (EVAP) SYSTEM
HC from canister is led into air
intake chamber. HC from tank is absorbed into
the canister.
HC from tank is absorbed
into the canister. Positioned below
purge port
Positioned above
purge port
Air is led into the fuel tank. Throttle Valve
OpeningEvaporated Fuel (HC) Canister Check Valve
Check
Valve in
Cap
Coolant
Te m p .BVSV
± EMISSION CONTROL SYSTEMS (2VZ±FE)Emission Control (EVAP) SystemEC±17

Troubleshooting
If the HC/CO concentration does not comply with regula-
tions, perform troubleshooting in the order given below.
(a) Check oxygen sensor operation.
(See page FI±129)
(b) See the table below for possible causes, and then inspect
and correct the applicable causes if necessary.
1. Faulty ignition:
wIncorrect timing
wFouled, shorted or improperly gapped plugs
wOpen or crossed high±tension cords
wCracked distributor cap
2. Incorrect valve clearance
3. Leaky EGR valve
4. Leaky intake and exhaust valves
5. Leaky cylinder
1. Restricted air filter
2. Faulty EFI system
wFaulty pressure regulator
wClogged fuel return line
wDefective water temp. sensor
wDefective air temp. sensor
wFaulty ECU
wFaulty injector
wFaulty cold start injector
wFaulty throttle position sensor
wAir flow meter 1. Vacuum leak:
wPCV hose
wEGR valve
wIntake manifold
wAir intake chamber
wThrottle body
wISC valve
wBrake booster line
2. Lean mixture causing misfire
Rough idle
(Black smoke from exhaust)Rough idle
(Fluctuating HC reading) Rough idleProblem
Normal
Cause
High
High
HighHigh
Low
± ENGINE MECHANICALIdle and or 2 500 rpm HC CO Concentration CheckMethod
EM±21

15. REMOVE AIR CLEANER ASSEMBLY
(a) Disconnect the following connector and hoses:
(1) Air flow meter connector
(2) ISC valve air hose
(3) Vacuum pipe air hose
(b) Disconnect the four air cleaner cap clips.
(c) Disconnect±the air cleaner hose, and remove the air
cleaner cap, hoses, and air flow meter assembly.
(d) Remove the air cleaner element.
(e) Remove the three bolts and air cleaner case.
16. DISCONNECT WIRES AND CONNECTORS
(a) Check connector
(b) Ground straps from LH fender apron
(c) Connectors from relay box
(d) Engine room wire connecter
17. DISCONNECT VACUUM HOSES
(a) Brake booster vacuum hose from air intake chamber
(b) A/C control valve vacuum hose from air intake chamber
(c) A/C control valve vacuum hose from vacuum pipe (on air in-
take chamber)
(d) Charcoal canister vacuum hose from vacuum pipe (on air in-
take chamber)
18. DISCONNECT GROUND STRAP FROM TRANSAXLE (w/o A.B.S..)
(a) Disconnect the following the hose and connectors:
(1) Actuator vacuum hose from air intake chamber
(2) Actuator connector
(3) Vacuum pump connector
(4) Vacuum switch connector
(b) Remove the three bolts, the actuator, vacuum pump
and vacuum switch assembly.
19. DISCONNECT HEATER HOSES
20. DISCONNECT FUEL HOSE
CAUTION: Catch leaking fuel in a container.
(M/T)
21. REMOVE STARTER
± ENGINE MECHANICALCylinder Block (2VZ±FE)EM±141

3. FILL WITH ENGINE OIL
(a) Clean and install the oil drain plug with a new gasket.
Torque: 2VZ±FE 3S±FE 400 kg±cm (29 ft±lb, 39 N±m)
(b) Fill with new engine oil (API grade SG muitigrade,
fuel±efficient and recommended viscosity oil).
Capacity (3S±FE):
Drain and refill
w/ Oil filter change
4.1 liters (4.3 U S qts, 3.6 Imp. qts)
w/o Oil filter change
3.7 liters (3.9 US qts, 3.3 Imp. qts)
Dry fill 4.5 liters (4.8 U S qts, 4.4 Imp. qts)
Capacity (2VZ±FE):
Drain and refill
w/ Oil filter change
3.9 liters (4.1 US qts, 3.4 Imp. qts)
w/o Oil filter change
3.7 liters (3.9 US qts, 3.3 Imp. qts)
Dry fill 4.6 liters (4.8 US qts, 4.4 Imp. qts)
(c) Install the oil filler cap.
4. START ENGINE AND CHECK FOR LEAKS
5. RECHECK ENGINE OIL LEVEL (See page LU±6) (d) Lightly screw the oil filter into place, and tighten it until
the gasket contacts the seat.
(e) Using SST, tighten it an additional 3/4 turn.
SST 09228±06500 (3S±FE)
09228±07500 (2VZ=FE)
± LUBRICATION SYSTEMReplacement of Engine Oil and Oil FilterLU±8