What are the Possible Causes of the DTC P1467?
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
Faulty Evaporative Emission Purge Pump
Evaporative Emission Purge Pump harness is open or shorted
Evaporative Emission Purge Pump circuit poor electrical connection
Faulty Engine Control Module (ECM)
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GM issued Special Coverage N202324990, which is a warranty extention to 150k miles or 15 years to cover cost to replace the evap purge pump. The is know to fail after about 10k miles. Just google the N2… number to get full details.