Content .. 1984 1985 1986 1987 ..
Toyota Tundra (2015 year). Manual - part 1986
malfunction.
When 2 to 3 minutes have elapsed after stopping the engine: Fuel pressure loss due to the
pressure regulator failing to maintain the fuel pressure.
When 15 to 120 minutes have elapsed after stopping the engine: Problem with injector fuel
seal.
When a long time has elapsed after stopping the engine: Pressure regulator is stuck open.
(2) Systems to inspect.
Intake system
1.
Ignition system
2.
Fuel system
3.
2. INSPECTION FLOW
(a) Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction
conditions are unknown.
FREEZE FRAME
DATA ITEM
RESULT
SUSPECTED AREA
PROCEDURE
Engine Speed
0 rpm (no engine cranking at all)
Battery fully depleted
Engine assembly
(excess friction)
Starter
Crankshaft position
sensor
ECM
4 to 9
100 to 250 rpm (engine cranks but no initial
combustion*1)
Fuel pump control
system
Ignition system
Immobiliser system
Engine coolant
temperature sensor
Fuel injection system
10 to 14
250 rpm or higher (combustion occurs but initial
combustion and starter turnoff*2 occur late)
Engine assembly
(compression loss)
Fuel injection system
Fuel pump control
system
15 to 23
HINT:
*1: First combustion after cranking begins.
*2: Condition when engine speed increases and starter can be turned off.
(b) When the malfunction (starting difficulty) can be reproduced, or when malfunction conditions are known.
(1) Problem symptoms
PROBLEM SYMPTOM
SUSPECTED AREA
SUSPECTED COMPONENT
PROCEDURE
The engine does not crank
Battery malfunction
Battery fully depleted
26 to 31
Starting system
Starter (includes pinion gear wear
or tooth damage)
Starting system
Immobiliser system
Immobiliser system
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...