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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Symptom Troubleshooting - Engine (VIN A)) >> Sulfuric Smell Occurs [PYUL] >> Diagnostic Procedure

Diagnostic Procedure

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SULFURIC SMELL OCCURS (PYUL) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 VERIFY PCM DTCs 
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Are any DTCs displayed?
Yes Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (PYUL)] .)
No Go to the next step.
2 VERIFY FUEL USED 
  • Verify with the customer if the fuel brand used was changed before the occurrence of sulfuric smell.
  • Was the fuel brand used changed?
Yes The vehicle is normal. Explain the following to the customer.
  • Sulfuric smell occurred due to high sulfur content in the fuel
  • Occurrence of sulfuric smell does not affect the driving performance or durability of the vehicle

Complete the symptom troubleshooting.
No The vehicle is normal. Explain the following to the customer.
  • The vehicle is normal
  • The mechanism of sulfuric smell occurrence
  • Occurrence of sulfuric smell does not affect the driving performance or durability of the vehicle

Complete the symptom troubleshooting.