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 the malfunction is not confirmed by the DTC check, perform troubleshooting on 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. 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
    		Proceed to
    11 V or more
    		OK
    Below 11 V
    		NG


NG.
RECHARGE 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.
        PROCEED TO PROBLEM SYMPTOMS TABLE
        OK


        6.CHECK FUEL PRESSURE


          		NG.
          CONTINUE TO TROUBLESHOOT
          OK


          7.CHECK FOR SPARK


            		NG.
            CONTINUE TO TROUBLESHOOT
            OK

            PROCEED TO PROBLEM SYMPTOMS TABLE