HD1746

I have thrown a p0449 code and the first time it happened my truck stalled at idle. I cleared the code and it keeps coming back on. The truck runs fine and has only stalled one other time. I have investigated the YouTube videos on the canister/valve replacement, but curious if anyone else has had it stall as well. I had gone over a large bump in the road the day prior and think I may have shook a wire or something else loose. Thanks