What is CID 996 & How to Solve It?

What is CID 996:

cid 996 points to an issue with the air filter restriction sensor. the ecm detects that the sensor output is out of range, signaling excessive restriction or a clogged air filter.

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Why This Happens:

• dirty or clogged air filter.
  
• faulty air restriction sensor.
  
• damaged vacuum line or sensor port.
  
• corroded connectors.
  
• ecm calibration fault.
  
  

How to Fix It:

1. inspect and replace the air filter if dirty.
   
2. test restriction sensor voltage at idle and load.
   
3. check vacuum lines for leaks or cracks.
   
4. clean sensor ports and connectors.
   
5. replace faulty sensor if readings are off.
   
   

How to Avoid It Before It Happens:

• replace air filters according to maintenance intervals.
  
• monitor restriction readings via diagnostics.
  
• keep air inlets free from debris.
  
• clue’s construction fleet management software helps monitor air intake systems to maintain peak performance.