Question

how to fix engine code p0441

Answer 1

Hi there,

There can be several causes for this code. These all need to be checked then the proper part replaced. It's not a single cause that sets the code sorry to say.

bad purge valve
- clogged or disconnected purge line
- vacuum leak near the purge line /engine intake connection
- bad vapor pressure sensor
- damaged or cracked charcoal canister
- faulty leak detection pump (LDP)
- bad NVLD unit (Chrysler)
- sticking or faulty vent valve
- misrouted vacuum hoses
- open or short in the purge valve control wiring 
- rusted filler neck (rust belt states)