Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2010 Infiniti M35 BaseFACTORY OEM SERVICE PROCEDURE

Component Function Check

PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B
With GST
1. Start engine and warm it up to normal operating temperature.
2. Select Service $01 with GST.
3. Check the mass air flow sensor signal with Service $01.
4. Check for linear mass air flow sensor signal value rise in response to increases to approximately 4, 000 RPM in engine speed.
  Is the inspection result normal?
  
  YES: INSPECTION END
  
  NO: Go to "DIAGNOSIS PROCEDURE ".
  
  Fig 1: Generic Scan Tool Display - MAF
  Courtesy of NISSAN MOTOR CO., U.S.A.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.