Basic Inspection

2GR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: BASIC INSPECTION

BASIC INSPECTION

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 troubleshooting the engine.
1. CHECK BATTERY VOLTAGE
NOTE:
Carry out this check with the engine stopped and the engine switch off.

Result:






NG -- CHARGE OR REPLACE BATTERY
OK -- Continue to next step.
2. CHECK WHETHER ENGINE CRANKS
NG -- PROCEED TO PROBLEM SYMPTOMS TABLE
OK -- Continue to next step.
3. CHECK WHETHER ENGINE STARTS
NG -- GO TO STEP 6
OK -- Continue to next step.
4. CHECK AIR FILTER
(a) Visually check that the air filter is not excessively contaminated with dirt or oil.
NG -- REPLACE AIR FILTER
OK -- Continue to next step.
5. CHECK IDLING SPEED
NG -- TROUBLESHOOT IDLING SPEED AND PROCEED TO NEXT STEP
OK -- Continue to next step.
6. CHECK FUEL PRESSURE
NG -- TROUBLESHOOT FUEL PRESSURE AND PROCEED TO NEXT STEP
OK -- Continue to next step.
7. CHECK FOR SPARKS
NG -- TROUBLESHOOT SPARK AND PROCEED TO NEXT STEP
OK -- PROCEED TO PROBLEM SYMPTOMS TABLE