P2280

P2280-AIR FLOW RESTRICTION / LEAK BETWEEN AIR CLEANER AND MAF

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation
This monitor can detect a severe restriction in the Air Filter or the inlet hose to the Airbox. This can cause a reduction in air flow large enough to cause damage to other engine components. This will cause the fault to be set. When this DTC is active, EGR flow is disabled.
- When Monitored:
Continuously with engine running.

- Set Condition:
The Powertrain Control Module (PCM) detects a rapid decrease in pressure from the Inlet Air Pressure Sensor on the Airbox.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
VISUAL INSPECTION
1. Turn ignition off.
2. Perform a visual inspection of the Inlet hose for debris, such as snow packing or dirt loading blocking passage.

Was a restriction found?

Yes

- Clean the debris from the passage way. Check and replace the Air Filter if necessary.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Powertrain Verification Test.

No

- Replace the Air Filter.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Powertrain Verification Test.