1986 TOYOTA CAMRY V20 engine

ELECTRONIC SPARK ADVANCE (ESA)
The ECU is programmed with data for optimum ignition timing
under any and all operating conditions. Using data provided
by sensors which monitor various engine functions (rpm, in-
take air volume, eng. temperature, etc.) the microcomputer
(ECU) triggers the spark at precisely the right instant.
IGNITION SYSTEM CIRCUIT
± IGNITION SYSTEMIgnition System CircuitIG±4

ON±VEHICLE INSPECTION (3S±FE)
SPARK TEST
CHECK THAT SPARK OCCURS
(a) Disconnect the high±tension cords from the spark plugs.
(b) Remove the spark plugs.
(c) Install the spark plugs to each high±tension cord.
(d) Ground the spark plug.
(e) Check if spark occurs while engine is being cranked.
HINT: To prevent gasoline from being injected from injectors
during this test, crank the engine for no more than 1
± 2 seconds at a time.
If the spark does not occurs, perform the test as follows:
CHECK RESISTANCE OF IGNITION COIL
(See page IG±7)
Resistance (Cold):
Primary 0.38 ± 0.46


Secondary 7.7 ± 10.4 k

CHECK POWER SUPPLY TO IGNITION
COIL AND IGNITER
1. Ignition switch turn to ON.
2. Check that there is battery voltage at
ignition coil positive (+) terminal. CHECK RESISTANCE OF HIGH±TENSION
CORD (See page IG±6)
Maximum resistance: 25 k
per cord
CHECK RESISTANCE OF SIGNAL
GENERATOR (PICKUP COIL) (See page
IG±8) Resistance: 140 ± 180


CHECK AIR GAP OF DISTRIBUTOR
(See page IG±7)
Air gap: 0.2 mm (0.008 in.) or moreCHECK CONNECTION OF IGNITION
COIL, IGNITER AND DISTRIBUTOR
CONNECTORS
Check wiring between ignition switch
to ignition coil and igniter.
Replace the distributor housing
assembly.
Replace the distributor housing
assembly.Replace the ignition coil.
TRY ANOTHER IGNITERReplace the cord(s). Connect securely. SPARK TEST
BAD BAD
BAD
BAD BAD
BAD
± IGNITION SYSTEMON±Vehicle Inspection (3S±FE)IG±5

ON±VEHICLE INSPECTION (2VZ±FE)
SPARK TEST
CHECK THAT SPARK OCCURS
(a) Disconnect the high±tension cord from the distributor.
(b) Hold the end approx. 12.5 mm (0.50 in.) from body of vehicle.
(c) See if spark occurs 'while engine is being cranked.
HINT: To prevent gasoline from being injected from injectors
during this test, crank the engine for no more than 1
± 2 seconds at time.
If the spark does not occurs, perform the test as follows:
CHECK RESISTANCE OF IGNITION COIL
(See page IG±12)
Resistance (Cold):
Primary 0.41 ± 0.50

Secondary 10.2 ± 13.8 k
CHECK POWER SUPPLY TO IGNITION COIL
1. Ignition switch turn to ON.
2. Check that there is battery voltage at
ignition coil positive (+) terminal.
CHECK RESISTANCE OF SIGNAL
GENERATOR (PICKUP COIL) (See page IG±8)
Resistance: 140 ±180
CHECK RESISTANCE OF HIGH±TENSION
CORDS (See page IG±10)
Maximum resistance: 25 k
per cord
CHECK AIR GAP OF DISTRIBUTOR
(See page IG±12)
Air gap: 0.2 mm 10.008 in.) or moreCHECK CONNECTION OF IGNITION COIL,
IGNITER AND DISTRIBUTOR CONNECTORS
Check wiring between ECU and distributor,
only then try another ECU.Check wiring between ignition switch to
ignition coil.
CHECK IGT SIGNAL FROM ECU
(See page FI±62)Replace the ignition coil.
Replace the distributor.
TRY ANOTHER IGNITERReplace the distributor. Replace the cord(s). Connect securely. SPARK TEST
BAD
BAD
BAD
BAD BAD
BAD
BAD
± IGNITION SYSTEMON±Vehicle Inspection (2VZ±FE)IG±9

INSPECTION OF SPARK PLUGS
NOTICE:
wNever use a wire brush for cleaning
wNever attempt to adjust the electrode gap on used
spark plug.
wSpark plug should be replaced every 100,000 km
I60,000 miles).
6. If not using a megger:
(a) Quickly race the engine to 4,000 rpm five times.
(b) Remove the spark plug.
(See step 2 on page IG±11)
(C) Visually check the spark plug.
If the electrode is dry ... Okay
If the electrode is wet ... Proceed to step 3 INSPECTION OF HIGH±TENSION CORDS
1. CAREFULLY REMOVE HIGH±TENSION CORDS BY
THEIR RUBBER BOOTS FROM SPARK PLUGS
NOTICE: Pulling on or bending the cords may damage the
conductor inside.
1. INSPECT ELECTRODE
A. If using a megger (insulation resistance motor):
Measure the insulation resistance.
Correct insulation resistance: 10 M

or more
If the resistance is less than specified, proceed step 2. 2. INSPECT HIGH±TENSION CORD RESISTANCE
Using an ohmmeter, measure the resistance.
Maximum resistance: 25 k

per cord
If the resistance is greater than maximum, replace the high±
tension cord.
± IGNITION SYSTEMOn±Vehicle Inspection (2VZ±FE)IG±10

3. CONNECT HIGH±TENSION CORDS TO SPARK PLUGS
Firing order: 1 ± 3 ± 4 ± Z
4. CONNECT DISTRIBUTOR CONNECTORS
5. INSTALL AIR CLEANER HOSE
6. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY
7. WARM UP ENGINE
Allow the engine to normal operating temperature.
8. CONNECT TACHOMETER AND TIMING LIGHT TO
ENGINE ±
Connect the test probe of a tachometer to the service con-
nector of the distributor.
NOTICE:
wNEVER allow the tachometer test probe to touch ground
as it could result in damage to the igniter and/or ignition
coil.
wAs some tachometers are not compatible with this igni-
tion system, we recommend that you confirm the
compatibility of your unit before use. (c) Align the cutout of the coupling with the line of the
housing.
(d) Insert the distributor, aligning the center of the flange
with that of bolt hole on the cylinder head.
(e) Lightly tighten the two hold±down bolts. INSTALLATION OF DISTRIBUTOR
1. SET NO.1 CYLINDER TO TDC/COMPRESSION
Turn the crankshaft clockwise, and position the slit of the
intake camshaft as shown.
2. INSTALL DISTRIBUTOR
(a) Install a new 0±ring to the housing.
(b) Apply a light coat of engine oil on the 0±ring.
± IGNITION SYSTEMDistributor PS±FE)IG±16

(b) Using a tinning light, check the ignition tinning.
Ignition timing: 10
°6TDC @ idle
(Transmission in N range)
(c) Loosen the two hold±down bolts, and adjust by turning
the distributor.
(d) Tighten the hold±down bolts, and recheck the ignition
timing.
Torque: 130 kg±cm (9 ft±Ib, 13 N±m)
9. ADJUST IGNITION TIMING
(a) Using SST connect terminals TE1 and E1 of the check
connector.
SST 09843±18020
HINT: After engine rpm are kept at 1, 1,300 rpm for 5 sec-
onds, check that they return to. idle speed.
10. FURTHER CHECK IGNITION TIMING
Ignition timing: 13 ± 22
° BTDC @ idle
(Transmission in N range)
HINT: The timing mark moves in a range between 13°
and 22°.
11. DISCONNECT TACHOMETER AND TIMING LIGHT
FROM ENGINE (e) Remove SST.
SST 09843±18020
± IGNITION SYSTEMDistributor (3S±FE)IG±17

INSTALLATION OF DISTRIBUTOR
1. SET NO.1 CYLINDER TO TDC/COMPRESSION
Turn the crankshaft clockwise, and position the the slit of
the intake camshaft (RH cylinder head) as shown. Look at
the distributor attachment hole to set.
3. CONNECT HIGH±TENSION CORDS TO DISTRIBUTOR
CAP
(a) (Ex. Center Cord)
First, insert the grommet part only. (d) Insert the distributor, aligning the line of the housing
with the cutout of the distributor attachment bearing
cap.
(e) Lightly tighten the two hold±down bolts. 2. INSTALL DISTRIBUTOR
(a) Install a new O±ring to the housing.
(b) Apply a light coat of engine oil on the 0±ring.
(c) Align the cutout marks of the coupling and housing.
± IGNITION SYSTEMDistributor (2VZ±FE)IG±19

6. WARM UP ENGINE
Allow the engine to normal operating temperature.
7. CONNECT TACHOMETER AND TIMING LIGHT TO
ENGINE
Connect the tachometer test probe to terminal IG [±] of the
check connector.
NOTICE:
wNEVER allow the tachometer test probe to touch ground
as it could result in damage to the igniter
and/or ignition coil.
wAs some tachometers are not compatible with this igni-
tion system, we recommended that you confirm the
compatibility of your unit before use.
8. ADJUST IGNITION TIMING
(a) Check the idle speed.
Idle speed: 700
+ 50 rpm
(b) Using SST connect terminals TE1 and E1 of the check con-
nector.
SST 09843±18020
(c) Using a timing light, check the ignition timing.
Ignition timing: 10°6TDC @ idle
(Transmission in N range)
(d) Loosen the two hold±down bolts, and adjust by turning the
distributor.
(e) Tighten the hold±down bolts, and recheck the ignition timing.
Torque: 185 kg±cm (13 ft±Ib, 18 N±m)
9. FURTHER CHECK IGNITION TIMING
Ignition timing: 10°BTDC @ idle
(Transmission in N range)
HINT: The timing mark moves in a range between 13°
and 27°.
10. DISCONNECT TACHOMETER AND TIMING LIGHT
FROM ENGINE (f) Remove SST.
SST 09843±18020
± IGNITION SYSTEMDistributor (2VZ±FE)IG±21