Sfi System Basic Inspection

  1. CHECK BATTERY VOLTAGE

  2. CHECK IF ENGINE CRANKS

  3. CHECK IF ENGINE STARTS

  4. CHECK AIR FILTER

  5. CHECK IDLING SPEED

  6. CHECK FUEL PRESSURE

  7. CHECK FOR SPARK

Sfi System -- Basic Inspection


When a malfunction is not confirmed in the DTC check, perform troubleshooting on all circuits considered 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. This check is essential when troubleshooting the engine.
1.CHECK BATTERY VOLTAGE
    NOTICE:
    Perform the battery check with the engine stopped and ignition switch OFF.
    Result:
    Result
    		Proceed to
    11 V or more
    		OK
    Below 11 V
    		NG


NG.
CHARGE OR REPLACE BATTERY
OK


2.CHECK IF ENGINE CRANKS


    		NG.
    PROCEED TO PROBLEM SYMPTOMS TABLE
    OK


    3.CHECK IF ENGINE STARTS


      		NG.
      Go to step 6
      OK


      4.CHECK AIR FILTER

      1. Perform a visual check and make sure that the air filter is not contaminated with dirt or oil.



      		NG.
      REPLACE AIR FILTER
      OK


      5.CHECK IDLING SPEED


        		NG.
        TROUBLESHOOT ENGINE MECHANICAL
        OK

        PROCEED TO PROBLEM SYMPTOMS TABLE


        6.CHECK FUEL PRESSURE

        1. Check the fuel pressure (Toyota Fortuner RM000000YL7009X_01_0002.html).



        		NG.
        TROUBLESHOOT FUEL SYSTEM AND PROCEED TO NEXT STEP
        OK


        7.CHECK FOR SPARK

        1. Check the ignition system (Toyota Fortuner RM000000SM600XX.html).



        		NG.
        TROUBLESHOOT IGNITION SYSTEM AND PROCEED TO NEXT STEP
        OK

        PROCEED TO TROUBLESHOOTING