Toyota Tundra (2015 year). Manual — part 1542

OK

OK

OK

TESTER CONNECTION

SWITCH

CONDITION

SPECIFIED

CONDITION

D74-83 (#70) - D74-43

(E01)

Ignition switch ON

11 to 14 V

D74-106 (#80) - D74-43

(E01)

Ignition switch ON

11 to 14 V

NG

GO TO FUEL INJECTOR CIRCUIT

12.

CHECK FUEL INJECTOR OF MISFIRING CYLINDER

(a) Check the injector injection [whether fuel volume is high or low, and whether injection pattern

is poor]

.

NG

REPLACE FUEL INJECTOR ASSEMBLY

13.

CHECK AIR INDUCTION SYSTEM

(a) Check the air induction system for vacuum leakage

.

OK:

No leakage from air induction system.

NG

REPAIR OR REPLACE AIR INDUCTION SYSTEM

14.

CHECK FUEL PRESSURE

(a) Check the fuel pressure

.

NG

GO TO STEP 33

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...

OK

OK

OK

15.

READ VALUE USING TECHSTREAM (COOLANT TEMP)

NG

REPLACE ENGINE COOLANT TEMPERATURE

SENSOR

16.

READ VALUE USING TECHSTREAM (MAF)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF and

Coolant Temp.

(e) Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher.

(f) Read MAF with the engine speed at 3000 rpm.

Standard:

Between 18.0 gm/sec. and 27.0 gm/sec. (shift lever: N; A/C: Off).

NG

GO TO STEP 28

17.

CHECK VALVE TIMING

OK

GO TO STEP 28

NG

CHECK ENGINE MECHANICAL SYSTEM

18.

CHECK AIR INDUCTION SYSTEM

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...

OK

OK

OK

(a) Check the air induction system for vacuum leakage

.

OK:

No leakage from air induction system.

NG

REPAIR OR REPLACE AIR INDUCTION SYSTEM

19.

CHECK FUEL PRESSURE

(a) Check the fuel pressure

.

NG

GO TO STEP 33

20.

READ VALUE USING TECHSTREAM (COOLANT TEMP)

NG

REPLACE ENGINE COOLANT TEMPERATURE

SENSOR

21.

READ VALUE USING TECHSTREAM (MAF)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF and

Coolant Temp.

(e) Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher.

(f) Read MAF with the engine speed at 3000 rpm.

Standard:

Between 18.0 gm/sec. and 27.0 gm/sec. (shift lever: N; A/C: Off).

NG

GO TO STEP 28

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...

OK

OK

OK

NEXT

OK

22.

CHECK VALVE TIMING

NG

CHECK ENGINE MECHANICAL SYSTEM

23.

INSPECT SPARK PLUG

.

NG

REPLACE SPARK PLUG

24.

CHECK FOR SPARK (SPARK TEST)

(a) Perform a spark test

.

HINT:

CHECK CYLINDER COMPRESSION PRESSURE

.

NG

CHECK ENGINE TO DETERMINE CAUSE OF LOW

COMPRESSION

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0300-P030...