What is CID 981 & How to Solve It?

What is CID 981:

cid 981 refers to an issue with the fuel temperature sensor. incorrect readings affect fuel density calculations and can reduce engine performance or increase emissions.

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Why This Happens:

• faulty fuel temperature sensor.
  
• contaminated fuel.
  
• damaged or shorted wiring.
  
• corroded connectors.
  
• ecm misinterpretation of data.

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How to Fix It:

1. inspect the fuel temperature sensor for damage.
   
2. test sensor resistance at different temperatures.
   
3. repair or replace corroded connectors.
   
4. drain and replace contaminated fuel.
   
5. replace the sensor if readings stay incorrect.

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How to Avoid It Before It Happens:

• use clean, high-quality fuel.
  
• inspect sensors and wiring during maintenance.
  
• perform regular diagnostic tests.
  
• clue’s fuel management services help monitor fuel condition and temperature for efficient engine performance.