Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 238

 

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Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 238

 

 

IG–4

1GR-FE IGNITION  –  IGNITION SYSTEM

IG

ON-VEHICLE INSPECTION

1.

CHECK IGNITION COIL ASSEMBLY AND PERFORM 
SPARK TEST
(a) Check for DTCs.

NOTICE:
If any DTC is present, perform troubleshooting 
in accordance with a procedure for that DTC.

(b) Check that sparks occur.

(1) Remove the ignition coils.
(2) Using a 16 mm plug wrench, remove the spark 

plugs.

(3) Install the spark plugs onto the ignition coils, 

and connect the ignition coil connectors.

(4) Disconnect the 6 injector connectors.
(5) Ground the spark plugs.
(6) Check that sparks occur at each spark plug 

while the engine is being cranked.
NOTICE:

Be sure to ground the spark plugs when 
checking.

Replace any ignition coils that have been 
subjected to any physical impact.

Do not crank the engine for more than 2 
seconds.

If sparks do not occur, perform the following 
test:

(c) Spark test flow chart.

(1) Check that the wire harness side connector of 

ignition coil with igniter is securely connected.
Result

(2) Perform the spark test on each ignition coil with 

igniter.
1.Replace the ignition coil with igniter with a 
functioning one.
2.Perform the spark test again.
Result

(3) Check that the power is supplied to the ignition 

coil.
1.Turn the ignition switch ON.
2.Check that the positive (+) battery voltage is 
applied to the positive (+) terminal of the 
ignition coil.

Result

Proceed to

NG

Connect securely.

OK

Go to next step.

Result

Proceed to

OK

Replace ignition coil with igniter.

NG

Go to next step.

1GR-FE IGNITION  –  IGNITION SYSTEM

IG–5

IG

Result

(4) Measure the output voltage of the VVT sensor.

1.Inspect the VVT sensor in accordance with 
the procedure (See page 

ES-192

).

Result

(5) Check the resistance in crankshaft position 

sensor.
Standard resistance

Result

(6) Check the IGT signal from the ECM.

Result

(d) Using a 16 mm plug wrench, install the spark plugs.
(e) Install the ignition coils.

2.

INSPECT SPARK PLUG
NOTICE:
Do not use a wire brush for cleaning.

(a) Check the electrode.

(1) Using a megaohmmeter, measure the 

insulation resistance.
Standard resistance:

10 M

 or more

HINT:

If the result is not as specified, clean the 
spark plug with a spark plug cleaner and 
measure the resistance again.

If a megaohmmete is not available, perform 
the following simple inspection instead.

(b) Alternative inspection method.

(1) Quickly accelerate the engine to 4,000 rpm 5 

times.

(2) Remove the spark plug.

Result

Proceed to

NG

Check wiring between ignition 

switch and ignition coil assembly.

OK

Go to next step.

Result

Proceed to

NG

Replace VVT sensor

OK

Go to next step.

Standard condition

Specified condition

at 20

°C (68°F)

1,850 to 2,450 

Result

Proceed to

NG

Replace the crankshaft position 

sensor.

OK

Go to next step.

Result

Proceed to

NG

Check ECM

OK

Repair wiring between ignition coil 

and ECM.

Ground

Megaohmmeter

I039522E11

IG–6

1GR-FE IGNITION  –  IGNITION SYSTEM

IG

(3) Visually check the spark plug.

If the electrode is dry, the spark plug is 
functioning properly. If the electrode is damp, 
proceed to the next step.

(c) Check the spark plug for any damage to its thread 

and insulator.
If there is damage, replace the spark plug.
Recommended spark plug

(d) Check the spark plug electrode gap.

Maximum electrode gap for used spark plug

If the gap is greater than the maximum, replace the 
spark plug.
Electrode gap for new spark plug

(e) Clean the spark plug.

If the electrode has traces of wet carbon, clean the 
electrode with a spark plug cleaner and then dry it.
Air pressure:

Below 588 kPa (6 kg/cm

2

, 85 psi)

Duration:

20 seconds or less

HINT:
Only use the spark plug cleaner when the electrode 
is free of oil. If the electrode has traces of oil, use 
gasoline to clean off the oil before using the spark 
plug cleaner.

P003783E01

Manufacturer

Product

DENSO

K20HR-U11

NGK

LFR6C11

Electrode Gap

A122451E01

Product

Electrode gap

K20HR-U11

1.1 mm (0.043 in.)

LFR6C11

1.1 mm (0.043 in.)

Product

Electrode gap

K20HR-U11

1.0 to 1.1 mm (0.039 to 0.043 in.)

LFR6C11

1.0 to 1.1 mm (0.039 to 0.043 in.)

B062019

1GR-FE IGNITION  –  IGNITION COIL

IG–7

IG

ENGINE

1GR-FE IGNITION

IGNITION COIL

COMPONENTS

AIR CLEANER ASSEMBLY

IGNITION COIL 
ASSEMBLY

NO. 1 SURGE TANK STAY

OIL BAFFLE 
PLATE

V-BANK COVER

N*m (kgf*cm, ft*lbf)  : Specified torque

21 (214, 16)

9.0 (92, 80 in.*lbf)

x2

x6

x6

10 (102, 7.4)

NO. 2 VENTILATION HOSE

8.0 (83, 71 in.*lbf)

8.0 (83, 71 in.*lbf)

VACUUM HOSE

7.5 (76, 66 in.*lbf)

x2

A126387E01

 

 

 

 

 

 

 

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