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Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner till early morning.
When an engine stalls, the engine shuts off while driving and needs to be restarted ith he key. This does not seem to be what you experiencing. Normally a 0401 code indiactes the DPFE sensor is bad. This can result in the EGR valve not working right and dumping to much exhaust back into the engine which will make it bog down or hesitate and run poorly.
Thanks for using Just Answer, and rating me so I am compensated, Chris
Hello again Chris here,