Toyota Tundra. Manual — part 2168

POSITION SENSOR "B" CIRCUIT (BANK 2); DTC P0392 CAMSHAFT POSITION
SENSOR "B" CIRCUIT LOW INPUT (BANK 2); DTC P0393 CAMSHAFT
POSITION SENSOR "B" CIRCUIT HIGH INPUT (BANK 2) ).

7. Check the camshaft position sensor (See DTC P1340 CAMSHAFT POSITION SENSOR

"A" (BANK 1 SENSOR 2); DTC P1342 CAMSHAFT POSITION SENSOR "A" LOW
INPUT (MRE); DTC P1343 CAMSHAFT POSITION SENSOR "A" HIGH INPUT
(MRE) ).

8. Check the crankshaft position sensor (See DTC P0335 CRANKSHAFT POSITION

SENSOR "A" CIRCUIT; DTC P0337 CRANKSHAFT POSITION SENSOR "A"
CIRCUIT LOW INPUT; DTC P0338 CRANKSHAFT POSITION SENSOR "A"
CIRCUIT HIGH INPUT; DTC P0339 CRANKSHAFT POSITION SENSOR "A"
CIRCUIT INTERMITTENT ).

9. Check the IGT signal circuit (See DTC P0351 IGNITION COIL "A"

PRIMARY/SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B"
PRIMARY/SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C"
PRIMARY/SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D"
PRIMARY/SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E"
PRIMARY/SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F"
PRIMARY/SECONDARY CIRCUIT; DTC P0357 IGNITION COIL "G"
PRIMARY/SECONDARY CIRCUIT; DTC P0358 IGNITION COIL "H"
PRIMARY/SECONDARY CIRCUIT ).

d. Connect the 8 injector connectors.

e. Install the ignition coils and spark plugs (See INSTALLATION ).

2. INSPECT SPARK PLUG

a. Check the electrode.

1. Using a megohmmeter, measure the insulation resistance.

Standard Insulation Resistance

STANDARD INSULATION RESISTANCE SPECIFICATIONS

NOTE:



Do not use a wire brush for cleaning.



Do not attempt to adjust the electrode gap of a used spark plug.

Tester Connection

Condition Specified Condition

Spark plug (terminal part) - Body ground Always

10 Mohms or higher

2009 Toyota Tundra

2009 ENGINE Ignition (3UR-FBE) - Tundra

Fig. 6: Measuring Insulation Resistance
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the insulation resistance is below the specified range, replace the spark plug.

HINT:

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

b. Alternative inspection method:

1. Quickly accelerate the engine to 4000 RPM 5 times.

2. Remove the spark plug.

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.

Fig. 7: Identifying Damaged Spark Plug
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Check the spark plug for any damage to its threads and insulator.

If there is any damage, replace the spark plug.

Recommended Spark Plug

2009 Toyota Tundra

2009 ENGINE Ignition (3UR-FBE) - Tundra

RECOMMENDED SPARK PLUG

d. Check the spark plug electrode gap.

Maximum electrode gap for a used spark plug: 1.3 mm (0.0512 in.)

If the gap is more than the maximum, replace the spark plug.

Electrode gap for a new spark plug: 1.0 to 1.1 mm (0.0394 to 0.0433 in.)

Fig. 8: Identifying Spark Plug Electrode Gap
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

Standard air pressure: 588 kPa (6.0 kgf/cm

2

, 85 psi)

Standard 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.

Manufacturer

Type

DENSO made SK20HR11

NOTE:

If adjusting the gap of a new spark plug, bend only the base of the
ground electrode. Do not touch the tip. Never attempt to adjust the
gap of a used plug.

2009 Toyota Tundra

2009 ENGINE Ignition (3UR-FBE) - Tundra

Fig. 9: Cleaning Spark Plug
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

IGNITION COIL AND SPARK PLUG

COMPONENTS

2009 Toyota Tundra

2009 ENGINE Ignition (3UR-FBE) - Tundra