Basic Inspection

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

When the malfunction cannot be confirmed by the DTC check, troubleshooting should be carried out for 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

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

Result:





NG -- CHARGE OR REPLACE BATTERY
OK -- Continue to next step.

2. CHECK WHETHER ENGINE CRANKS

NG -- PROCEED TO PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures
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 IDLE SPEED

NG -- TROUBLESHOOT IDLE 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 SPARK

NG -- TROUBLESHOOT IGNITION SYSTEM AND PROCEED TO NEXT STEP

OK -- PROCEED TO PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures