What is SPN 102 FMI 16 & How to Solve It?

What is SPN 102 FMI 16:

SPN 102 FMI 16 refers to a malfunction in the Boost Pressure Sensor Circuit, specifically indicating a voltage reading too high. The boost pressure sensor measures the air pressure entering the engine’s intake manifold, which is vital for optimizing engine performance. When this fault occurs, the sensor may be providing an erroneous high voltage signal, affecting the air-fuel mixture and engine efficiency.

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Why This Happens

Common causes of SPN 102 FMI 16 include:

• Faulty or malfunctioning boost pressure sensor.
  
• Damaged wiring or corroded connectors in the sensor circuit.
  
• Leaks in the intake system leading to inaccurate pressure readings.
  
• Faulty Engine Control Module (ECM) misinterpreting the sensor signal.
  
  

How to Fix It

To resolve this fault:

1. Inspect the boost pressure sensor and wiring for damage or corrosion.
   
2. Test the sensor’s voltage signal to determine if it is within the expected range.
   
3. Replace the boost pressure sensor if faulty.
   
4. Check the intake system for leaks or damage that could affect pressure readings.
   
5. Repair or replace damaged wiring or connectors.
   
6. Clear the fault code and monitor system operation to verify that the issue is resolved.
   
   

How to Avoid It Before It Happens

To prevent this fault:

• Regularly inspect the boost pressure sensor and wiring.
  
• Ensure the intake system is sealed and free of leaks.
  
• Perform routine diagnostics to monitor sensor health and detect issues early.
• Use Clue’s Preventive Maintenance to regularly inspect the boost pressure sensor, wiring, and intake system to catch issues early and maintain optimal engine performance.