What are the reasons for insufficient speed of the P1467 purge pump?
2 Answers
p1467 purge pump insufficient speed reasons are as follows: Circuit failure: Check the purge pump's connection wiring and plugs for poor contact to confirm this fault. If there is a circuit failure in the purge pump, it will result in insufficient power supply to the purge pump, leading to inadequate speed. Repair the faulty circuit. Air leakage in the pipeline: Inspect whether the pipeline connector from the purge pump to the charcoal canister is loose or if the pipeline surface is damaged. If present, it will cause air leakage in the pipeline, resulting in insufficient purge pump speed. Repair the faulty pipeline. Purge pump failure: Use an automotive diagnostic computer to read the purge pump's data stream and analyze whether its working status is normal. If there is no air leakage in the pipeline and the circuit connection is normal, the purge pump failure can be confirmed. Replace the purge pump.
When the P1467 trouble code appears, insufficient purge pump speed is usually caused by electrical issues, such as aging wiring or loose connections leading to unstable current. I've seen many vehicles report this error for such reasons. Wear and tear on the motor itself or damaged carbon brushes can reduce the speed; additionally, power supply problems like insufficient alternator output can also affect pump speed. For diagnosis, I recommend using a multimeter to check if the voltage input is normal and inspecting the wiring harness for any damage. Ignoring this issue may lead to evaporative emission system failure, increased fuel consumption, or even trigger the check engine light. It's best to promptly clean carbon buildup in related pipes to prevent worsening, and regular comprehensive inspections at the shop can help prevent potential hazards.
