Basic Inspection

2TR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM:

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 flowchart, 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.





NG -- CHARGE OR REPLACE BATTERY
OK -- Continue to next step.
2. CHECK WHETHER ENGINE WILL CRANK
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

HINT: Refer to Engine Mechanical (Engine).

NG -- PROCEED TO PROBLEM SYMPTOMS TABLE
OK -- Continue to next step.
6. CHECK FUEL PRESSURE

HINT: Refer to Fuel System (Testing and Inspection).

NG -- PROCEED TO FUEL SYSTEM AND CONTINUE TROUBLESHOOTING
OK -- Continue to next step.
7. CHECK FOR SPARK

HINT: Refer to Ignition System (Testing and Inspection).

NG -- PROCEED TO IGNITION SYSTEM AND CONTINUE TROUBLESHOOTING
OK -- PROCEED TO PROBLEM SYMPTOMS TABLE