MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
MULTIPORT FUEL INJECTION (MFI) <2.4L>
STEP 8. Check the fuel pressure.
Q: Is the fuel pressure normal?
YES : Go to Step 9.
symptom is eliminated.
STEP 9. Check the ignition timing.
Q: Is the ignition timing normal?
YES : Check the following items, and repair or replace the
a. Check the ignition coil, spark plugs, spark plug
b. Check compression pressure.
c. Check the engine oil viscosity.
Then confirm that the malfunction symptom is
NO : Check that the crankshaft position sensor and timing
belt cover are in the correct position. Then confirm
INSPECTION PROCEDURE 12: When the Engine Is Hot, It Stalls at Idle (Die Out).
In cases such as the above, the ignition system,
TROUBLESHOOTING HINTS (The most likely
Malfunction of the ignition system.
Malfunction of air/fuel ratio control system.
Malfunction of the IAC system.
Improper connector contact.
Required Special Tool:
STEP 1. Check if the battery terminal is disconnected
Q: Has the battery terminal been disconnected lately?
YES : Start the engine and let it run at idle for approximate
10 minutes after engine warm up. Then, if a
NO : Go to Step 2.