P2280 - AIR FILTER RESTRICTION

For a complete wiring diagram Refer to Section 8W


  • When Monitored:

    With the engine running. The ECM compares mass airflow volume/engine rpm to atmospheric pressure.

  • Set Condition:

    The ECM detects a 50% or more drop in airflow through the air filter for 5 minutes.


Possible Causes
  
INTERMITTENT DTC
  
CLOGGED AIR FILTER
  
INTAKE AIR RESTRICTION
  
INTAKE AIR LEAK
  

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)



Diagnostic Test

1.CHECK THE AIR FILTER




Were any of these problems found?

Yes
  • Replace the Air Filter element


No
  • Go to 2

2.CHECK FOR INTAKE SYSTEM RESTRICTIONS

NOTE: Damaged, restricted or poorly connected intake and turbocharger related tubes can cause this DTC to set.




Were any problems found?

Yes


No
  • Go to 3

3.CHECK FOR INTAKE SYSTEM AIR LEAKS







Is there evidence of smoke leakage?

Yes


No
  • Test Complete.