Sfi System Basic Inspection

  1. CHECK BATTERY VOLTAGE

  2. CHECK IF ENGINE CRANKS

  3. CHECK ENGINE STARTS

  4. CHECK AIR FILTER

  5. CHECK IDLING SPEED

  6. CHECK FUEL PRESSURE

  7. CHECK FOR SPARKS

Sfi System -- Basic Inspection


When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential for engine troubleshooting.
1.CHECK BATTERY VOLTAGE
    CAUTION:
    Carry out this check with the engine stopped and ignition switch off.
    Result
    		Proceed To
    11 V or more
    		A
    Below 11 V
    		B


B.
CHARGE OR REPLACE BATTERY
A


2.CHECK IF ENGINE CRANKS


    		 NG.
    PROCEED TO PROBLEM SYMPTOMS TABLE
    OK


    3.CHECK ENGINE STARTS


      		NG.
      GO TO STEP 7
      OK


      4.CHECK AIR FILTER

      1. Visually check that the air filter is not contaminated with dirt or oil.



      		NG.
      REPLACE AIR FILTER
      OK


      5.CHECK IDLING SPEED

      1. Check idling speed (LandCruiser RM000002ZLZ06TX_01_0016.html).



      		NG.
      PROCEED TO PROBLEM SYMPTOMS TABLE
      OK


      6.CHECK FUEL PRESSURE

      1. Check fuel pressure (LandCruiser RM000000Q3M06EX_01_0002.html).



      		NG.
      PROCEED TO TROUBLESHOOT
      OK


      7.CHECK FOR SPARKS

      1. Check for sparks (LandCruiser RM000000SM6077X_02_0001.html).



      		NG.
      PROCEED TO TROUBLESHOOT
      OK

      PROCEED TO PROBLEM SYMPTOMS TABLE