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

PROCEDURE

1. CHECK BATTERY VOLTAGE

   Note

   Conduct this check with the engine stopped and the ignition switch off.

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

   
   

   NG

   CHARGE OR REPLACE BATTERY

   OK

2. CHECK WHETHER ENGINE CRANKS

   Result
   Proceed to OK NG

   
   

   NG

   PROCEED TO PROBLEM SYMPTOMS TABLE

   OK

3. CHECK WHETHER ENGINE STARTS

   Result
   Proceed to OK NG

   
   

   NG

   GO TO STEP 6 Click here

   OK

4. CHECK AIR FILTER

   
   

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

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE AIR FILTER

   OK

5. CHECK IDLING SPEED

   Result
   Proceed to OK NG

   
   

   NG

   TROUBLESHOOT IDLING SPEED AND PROCEED TO NEXT STEP

   OK

6. CHECK FUEL PRESSURE

   Result
   Proceed to OK NG

   
   

   NG

   TROUBLESHOOT FUEL PRESSURE AND PROCEED TO NEXT STEP

   OK

7. CHECK FOR SPARKS

   Result
   Proceed to OK NG

   
   

   OK

   PROCEED TO PROBLEM SYMPTOMS TABLE

   NG

   TROUBLESHOOT IGNITION SYSTEM AND PROCEED TO NEXT STEP