P0446 Code The Essential Handbook for Automotive Professionals

This code is directly connected to the vent valve, vent valve wires, and vent valve tube. So you'll see it if there's wiring issues, a leak in the tube, or ... Engine light on with EVAP code in your car or truck? Rapidly find the problem in your EVAP system. 1A Auto: Repair Tips & Secrets Only Mechanics Know i'm trying to solve my ECU P0446 light. Just changed the Gas cap, old one was pretty lose. I did restore the codes ( temporary and confirmed ) ... if by some chance the gas cap is causing an issue that would throw a different p code. p0446 relates to the valve you could waste time ... P0446 is a vent valve contol circuit failure. If the electromagnet coil in the vent valve is burned out it'll appear to the ECM that the control circuit is ... the po446 dtc is checking for a blocked evap path. it does this by commanding the purge valve open and watching for vacuum build up from the ... If the vent control circuit is throwing a code, the vent isnt opening to allow pressure release on fill up. Thus causing the fill neck to back ... P0446: Purge airline is blocked or high flow resistance in the EVAP canister. 03-30-2014 10:55 AM ... It is possible some of the lines for evap got affected. Most of that stuff sits behind the right rear wheel with lines running over the wheel to the gas tank ... Check engine light on my 2015 Sierra 1500 came on today giving a P0446 evaporative emission system vent control electrical circuit code, ...