Sfi System Problem Symptoms Table

Sfi System -- Problem Symptoms Table


HINT:
  1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

SFI System
Symptom
Suspected Area
See page
Engine does not crank (Does not start)
Battery
LandCruiser RM000001AR90C3X.html
Starter assembly (for 1.4 kW Type)
LandCruiser RM0000015XW02DX.html
Starter assembly (for 2.0 kW Type)
LandCruiser RM00000179K00SX.html
Smart entry and start system (for Start function)
LandCruiser RM000000YEF0MNX.html
Park/neutral position switch assembly (for Automatic Transmission Models)
LandCruiser RM000000OD401HX.html
Clutch start switch assembly (for Manual Transmission Models)
LandCruiser RM0000032S300DX.html
VC output circuit (ECM 5 V circuit)
LandCruiser RM000001D6V0WFX.html
Starter signal circuit
LandCruiser RM000002XN20KKX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
No initial combustion (Does not start)
Immobiliser system (for w/ Entry and Start System)
LandCruiser RM000000QY40G3X.html
Immobiliser system (for w/o Entry and Start System)
LandCruiser RM000000YEF0MNX.html
VC output circuit (ECM 5 V output)
LandCruiser RM000001D6V0WFX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
Crankshaft position sensor
LandCruiser RM0000017E800LX.html
Camshaft position sensor (for Intake Side)
LandCruiser RM000000WBZ0SKX_01.html
Camshaft position sensor (for Exhaust Side)
LandCruiser RM000000YTB0LXX_01.html
Valve timing
LandCruiser RM000000YMY02TX_01_0045.html
Ignition system
LandCruiser RM000000SM6077X.html
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Fuel injector circuit
LandCruiser RM000000ZRM0LCX.html
Starter signal circuit
LandCruiser RM000002XN20KKX.html
Engine cranks normally but has difficulty in start
Engine difficult to start
LandCruiser RM000005RMD019X.html
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Engine coolant temperature sensor
LandCruiser RM0000013Y200JX.html
Ignition system
LandCruiser RM000000SM6077X.html
Compression
LandCruiser RM000002ZLZ06TX_01_0010.html
Fuel injector assembly
LandCruiser RM000000WQQ0BIX.html
Fuel injector circuit
LandCruiser RM000000ZRM0LCX.html
Intake system
LandCruiser RM000001A3W03PX.html
Throttle body with motor assembly
LandCruiser RM000000VWP02HX.html
PCV valve and hose
LandCruiser RM00000141J019X_01_0001.html
Starter signal circuit
LandCruiser RM000002XN20KKX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
Incomplete intermittent combustion occurs (Does not start)
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Fuel pump (for 3 Door)
LandCruiser RM0000045QN006X.html
Fuel pump (for 5 Door)
LandCruiser RM0000045QJ00BX.html
Fuel line
-
Ignition system
LandCruiser RM000000SM6077X.html
Fuel injector circuit
LandCruiser RM000000ZRM0LCX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
Starter signal circuit
LandCruiser RM000002XN20KKX.html
Crankshaft position sensor
LandCruiser RM0000017E800LX.html
Camshaft position sensor (for Intake Side)
LandCruiser RM000000WBZ0SKX_01.html
Camshaft position sensor (for Exhaust Side)
LandCruiser RM000000YTB0LXX_01.html
Valve timing
LandCruiser RM000000YMY02TX_01_0045.html
High engine speed
Throttle body with motor assembly
LandCruiser RM000000VWP02HX.html
Intake system
LandCruiser RM000001A3W03PX.html
A/C signal circuit (for Automatic Air Conditioning System)
LandCruiser RM000002LIM07YX.html
A/C signal circuit (for Manual Air Conditioning System)
LandCruiser RM000002LIM07ZX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
Engine coolant temperature sensor
LandCruiser RM0000013Y200JX.html
PCV valve and hose
LandCruiser RM00000141J019X_01_0001.html
Low engine speed (Poor idle)
Throttle body with motor assembly
LandCruiser RM000000VWP02HX.html
A/C signal circuit (for Automatic Air Conditioning System)
LandCruiser RM000002LIM07YX.html
A/C signal circuit (for Manual Air Conditioning System)
LandCruiser RM000002LIM07ZX.html
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Fuel pump (for 3 Door)
LandCruiser RM0000045QN006X.html
Fuel pump (for 5 Door)
LandCruiser RM0000045QJ00BX.html
Intake system
LandCruiser RM000001A3W03PX.html
PCV valve and hose
LandCruiser RM00000141J019X_01_0001.html
Engine stalls on deceleration
Engine stalls
LandCruiser RM000005RMD01AX.html
Idle speed (refer to "Low engine speed" symptom)
-
Rough idle
Rough idling
LandCruiser RM000005RMD018X.html
Compression
LandCruiser RM000002ZLZ06TX_01_0010.html
Ignition system
LandCruiser RM000000SM6077X.html
Spark plug
LandCruiser RM000000SM6077X_02_0002.html
Fuel injector circuit
LandCruiser RM000000ZRM0LCX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Fuel pump (for 3 Door)
LandCruiser RM0000045QN006X.html
Fuel pump (for 5 Door)
LandCruiser RM0000045QJ00BX.html
Fuel line
-
Throttle body with motor assembly
LandCruiser RM000000VWP02HX.html
Intake system
LandCruiser RM000001A3W03PX.html
Purge VSV
LandCruiser RM00000141J019X_01_0002.html
PCV valve and hose
LandCruiser RM00000141J019X_01_0001.html
Air fuel ratio sensor
LandCruiser RM00000175800NX.html
Mass air flow meter sub-assembly
LandCruiser RM0000031C100IX.html
Knock control sensor
LandCruiser RM000000VWF02DX.html
Hunting (Poor idle)
Electronic throttle control system
LandCruiser RM000000VWP02HX.html
Intake system
LandCruiser RM000001A3W03PX.html
ECM power source circuit
LandCruiser RM0000027690EIX.html
Hesitation and/or poor acceleration (Poor driveability)
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Spark plug
LandCruiser RM000000SM6077X_02_0002.html
Ignition system
LandCruiser RM000000SM6077X.html
Fuel injector assembly
LandCruiser RM000000WQQ0BIX.html
Mass air flow meter sub-assembly
LandCruiser RM0000031C100IX.html
Electronic throttle control system
LandCruiser RM000000VWP02HX.html
Intake system
LandCruiser RM000001A3W03PX.html
Compression
LandCruiser RM000002ZLZ06TX_01_0010.html
Brake override system
LandCruiser RM000004G8F0VXX.html
Surging (Poor driveability)
Spark plug
LandCruiser RM000000SM6077X_02_0002.html
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Ignition system
LandCruiser RM000000SM6077X.html
Fuel injector assembly
LandCruiser RM000000WQQ0BIX.html
Mass air flow meter sub-assembly
LandCruiser RM0000031C100IX.html
Variable Valve Timing (VVT) system
LandCruiser RM0000013JV00KX.html
Compression
LandCruiser RM000002ZLZ06TX_01_0010.html
Engine stalls soon after starting
Immobiliser system (for w/ Entry and Start System)
LandCruiser RM000000QY40G3X.html
Immobiliser system (for w/o Entry and Start System)
LandCruiser RM000001GUQ05EX.html
Fuel pump control circuit
LandCruiser RM0000027680CJX.html
Spark plug
LandCruiser RM000000SM6077X_02_0002.html
Ignition system
LandCruiser RM000000SM6077X.html
Fuel injector assembly
LandCruiser RM000000WQQ0BIX.html
Variable Valve Timing (VVT) system
LandCruiser RM0000013JV00KX.html
Electronic throttle control system
LandCruiser RM000000VWP02HX.html
Intake system
LandCruiser RM000001A3W03PX.html
PCV valve and hose
LandCruiser RM00000141J019X_01_0001.html
Compression
LandCruiser RM000002ZLZ06TX_01_0010.html
Lack of power
Lack of power
LandCruiser RM000005RMD01BX.html
Brake override system
LandCruiser RM000004G8F0VXX.html
Engine stalls only during A/C operation
A/C signal circuit (for Automatic Air Conditioning System)
LandCruiser RM000002LIM07YX.html
A/C signal circuit (for Manual Air Conditioning System)
LandCruiser RM000002LIM07ZX.html
ECM
LandCruiser RM000000VNE00IX.html
MIL (malfunction indicator lamp) malfunction
MIL Circuit
LandCruiser RM000000WZ11AGX.html
Meter/Gauge system
LandCruiser RM000002Z4L055X.html
Engine stalls when starting off
Automatic transmission system
LandCruiser RM000000W6Z168X.html
Engine stalls
LandCruiser RM000005RMD01AX.html
Unable/difficult to refuel
Fuel system (canister, roll over valve, fuel tank etc.)
-
HINT:
*: Check the "Fuel Cut Elps Time" in the Data List.
If the elapsed time is over 0 sec, then the engine speed is high (More than the engine speed at which fuel cut occurs + 500 rpm).
When this has happened, there is the possibility that the valve rocker arm will become loose and malfunction, so check that the No. 1 valve rocker arm sub-assembly is properly attached (LandCruiser RM000000YN002GX.html ).