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TROUBLESHOOTING MULTIPOINT FUEL INJECTION (MPI) 13A-133 YES : Go to Step 6. NO : Throttle body (throttle valve area) cleaning ). STEP 6. M.U.T.-III data list • Data list reference table (Refer to ). a. Item 2: Crank angle sensor Q: Is the check result normal? YES : Go to Step 7. NO : Check code No. P0335: crank angle sensor STEP 7. Visual check of ignition spark. • Remove the spark plug and install it to the ignition coil. • Connect the ignition coil connector. • Disconnect all injector connectors. • At the engine start, check each spark plug pro- duces a spark. Q: Is the check result normal? YES : Go to Step 9. NO : Go to Step 8. STEP 8. Check spark plug. • Check spark plug (Refer to GROUP 16 − Ignition System − On-vehicle Service − Spark Plug Check and Cleaning ). Q: Is the check result normal? YES : Check Inspection Procedure − ignition circuit system (Refer to ). NO : Replace the spark plug. STEP 9. Check injector for operating sound. • Injector check (Refer to ). Q: Is operating sound audible? YES : Go to Step 10. NO : Check the injector system of the defective Check code No. P0262: No. 1 injector circuit ). Check code No. P0264: No. 2 injector circuit low input ). Check code No. P0265: No. 2 injector circuit high input ). Check code No. P0267: No. 3 injector circuit low input (Refer ). Check code No. P0268: No. 3 injector circuit high input (Refer to ). Check code No. P0270: No. 4 injector circuit low input (Refer to Check code No. P0271: No. 4 injector circuit ). STEP 10. Fuel pressure measurement. • Fuel pressure test (Refer to ). Q: Is the check result normal? YES : Go to Step 11. NO : Repair. STEP 11. Replace the engine-ECU. • After replacing the engine-ECU re-check the trou- ble symptoms. Q: Does the trouble symptom persist? YES : Check for foreign matters (water, diesel fuel, etc.) in fuel and replace if necessary. NO : Check end. Inspection Procedure 6: Starting Impossible (initial combustion but no complete combustion), COMMENTS ON TROUBLE SYMPTOM • The failure could possibly be caused by the poor ignition, improper air-fuel ratio at cranking, failed PROBABLE CAUSES • Failed battery • Failed ignition system • Failed fuel system • Failed air-fuel ratio control system • Failed intake air system • Contamination around the throttle valve • Timing chain in out of place • Improper compression pressure • Failed engine-ECU DIAGNOSIS PROCEDURE STEP 1. Check battery. • Check battery (Refer to GROUP 54A − Battery − On-vehicle Service − Battery Test ). Q: Is the check result normal? YES : Go to Step 2. NO : Replace the battery. |