SFI SYSTEM BASIC INSPECTION

CAUTION / NOTICE / HINT

When the 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 procedure, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when troubleshooting the engine.

PROCEDURE

1. CHECK AUXILIARY BATTERY VOLTAGE

   Note

   Carry out this check with the engine stopped and the power switch off.

   Result
   Result Proceed to 11 V or more OK Below 11 V NG

   
   

   NG

   CHARGE OR REPLACE AUXILIARY BATTERY

   OK

2. CHECK WHETHER ENGINE CRANKS

   Result
   Proceed to OK NG

   
   

   NG

   PROCEED TO PROBLEM SYMPTOMS TABLE Click here

   OK

3. CHECK WHETHER ENGINE STARTS

   Result
   Proceed to OK NG

   
   

   NG

   GO TO STEP 6 Click here

   OK

4. CHECK AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

   
   

   1. Visually check that the air cleaner filter element sub-assembly is not excessively contaminated with dirt or oil.

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

   OK

5. CHECK IDLE SPEED

   
   

   1. Check the engine idle speed.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   TROUBLESHOOT IDLE SPEED AND PROCEED TO NEXT STEP

   OK

6. CHECK FUEL PRESSURE

   
   

   1. Check the fuel pressure.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   TROUBLESHOOT FUEL PRESSURE AND PROCEED TO NEXT STEP

   OK

7. CHECK FOR SPARK

   
   

   1. Perform a spark test.

      Click here

      Result
      Proceed to OK NG

   
   

   OK

   PROCEED TO PROBLEM SYMPTOMS TABLE Click here

   NG

   TROUBLESHOOT IGNITION SYSTEM AND PROCEED TO NEXT STEP