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TROUBLESHOOTING DIESEL FUEL 13A-464 STEP 4. Check injector identification code. • Check injector identification code (Refer to GROUP 00 − Precautions Before Service − Injec- tor Identification code Registration Procedure ). Q: Is the check result normal? YES : Go to Step 5 . NO : Register the injector ID. STEP 5. Supply pump correction learning. • Carry out the supply pump correction learning (Refer to GROUP 00 − Precautions Before Serv- ice − Supply Pump Correction Learning ). Q: Does trouble symptom persist? YES : Go to Step 6 . NO : The procedure is complete. STEP 6. Small injection quantity learning. • Carry out the small injection quantity learning procedure (Refer to GROUP 00 − Precautions Before Service − Small Injection Quantity Learn- ing Procedure ). Q: Does trouble symptom persist? YES : Go to Step 7 . NO : The procedure is complete. STEP 7. Confirm the using fuel. Q: Is the specified fuel being used? YES : Go to Step 8 . NO : Replace fuel. STEP 8. Check glow system. • Check glow system (Refer to Code No. P0381 <Euro5> or Inspection Procedure 25 <Except Euro5>). Q: Is the check result normal? YES : Go to Step 9 . NO : Repair or replace the failed item. STEP 9. Check fuel supply line. • Check for fuel leakage and clogging. • Check fuel filter for clogging. Q: Is the check result normal? YES : Go to Step 10 . NO : Repair or replace the failed item. STEP 10. Priming (air bleeding) • Bleed air. Q: Does trouble symptom persist? YES : Go to Step 11 . NO : The procedure is complete. STEP 11. M.U.T.-III actuator test. • Refer to Actuator Test Reference Table a. Item 19: Suction control valve Q: Is the check result normal? YES : Go to Step 12 . NO : Replace the suction control valve. After − Precautions Before Service − What The Common Rail Engine Learns ). STEP 12. Check suction control valve itself. • Check suction control value itself (Refer to ). Q: Is the check result normal? YES : Go to Step 13 . NO : Replace the suction control valve. After − Precautions Before Service − What The Common Rail Engine Learns ). STEP 13. M.U.T.-III data list. • Refer to Data List Reference Table . a. Item 63: Rail pressure sensor Q: Are the check results normal? YES : Go to Step 15 . NO : Go to Step 14 . STEP 14. Replace the rail pressure sensor. • Replace the common-rail assembly. Q: Does trouble symptom persist? YES : Go to Step 18 . NO : The procedure is complete. STEP 15. Check the waveforms of crank angle • Check the output waveforms on an oscilloscope Q: Is the check result normal? YES : Go to Step 16 . NO : Proceed to the inspection procedure by ). |