P1467 on 2020-2024 Buick Encore GX — EVAP Purge Pump Underspeed
1 vehicles · 1 makes · $400-$850 repair
Most Reported On
P1467 is an OBD-II diagnostic trouble code meaning “EVAP Purge Pump Underspeed.” General Motors powertrain code. On LEV III-compliant GM engines an electric evaporative emission purge pump, with an integral pressure sensor, is used to raise purge volume and pull fuel vapour out of the EVAP canister. The ECM commands a target pump speed and compares it against the pump's actual reported speed. P1467 sets when actual purge pump speed and desired purge pump speed differ by more than a calibrated amount for longer than roughly five seconds — the pump is turning slower than commanded or not at all. This code is most commonly reported on 2020-2024 Buick Encore GX, with repair costs ranging from $400 to $850.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P1467 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P1467 mean?
P1467 stands for "EVAP Purge Pump Underspeed." General Motors powertrain code. On LEV III-compliant GM engines an electric evaporative emission purge pump, with an integral pressure sensor, is used to raise purge volume and pull fuel vapour out of the EVAP canister. The ECM commands a target pump speed and compares it against the pump's actual reported speed. P1467 sets when actual purge pump speed and desired purge pump speed differ by more than a calibrated amount for longer than roughly five seconds — the pump is turning slower than commanded or not at all.
What are the most common causes of P1467?
The most common causes of P1467 are: Liquid fuel drawn into the purge pump, commonly from topping off / overfilling the fuel tank — a known GM failure with a service bulletin, Failed evaporative emission purge pump (seized or worn motor), Open, shorted or chafed purge pump control or feed wiring, Poor electrical connection or corrosion at the purge pump connector, Saturated or contaminated EVAP canister restricting flow, Blown fuse or lost power feed to the pump. The specific cause varies by vehicle.
How much does it cost to fix P1467?
Repair costs for P1467 range from $400 to $850, depending on the vehicle and root cause.
Which vehicles are affected by P1467?
Au7o has documented P1467 across 1 vehicle models from 1 manufacturers: Buick.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.