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

1. CHECK BATTERY VOLTAGE 
   NOTE: Carry out this check with the engine stopped and ignition switch OFF.
   VOLTAGE SPECIFICATIONS
   
   

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

   1. NG: CHARGE OR REPLACE BATTERY 
   2. OK: GO TO NEXT STEP 
2. CHECK WHETHER ENGINE WILL CRANK 
   1. NG: PROCEED TO  PROBLEM SYMPTOMS TABLE  
   2. OK: GO TO NEXT STEP 
3. CHECK WHETHER ENGINE STARTS 
   1. NG: GO TO STEP   6 
   2. OK: GO TO NEXT STEP 
4. CHECK AIR FILTER 
   1. Visually check that the air filter is not excessively contaminated with dirt or oil.
   1. NG: REPLACE AIR FILTER 
   2. OK: GO TO NEXT STEP 
5. CHECK IDLING SPEED (See  INSPECTION  ) 
   1. NG : PROCEED TO  INSPECTION  AND CONTINUE TROUBLESHOOTING 
   2. OK : PROCEED TO  PROBLEM SYMPTOMS TABLE  
6. CHECK FUEL PRESSURE (See  ON-VEHICLE INSPECTION  ) 
   1. NG : PROCEED TO  ON-VEHICLE INSPECTION  AND CONTINUE TROUBLESHOOTING 
   2. OK : GO TO NEXT STEP 
7. CHECK FOR SPARK (See  ON-VEHICLE INSPECTION  ) 
   1. NG : PROCEED TO  ON-VEHICLE INSPECTION  AND CONTINUE TROUBLESHOOTING 
   2. OK : PROCEED TO  PROBLEM SYMPTOMS TABLE