GM Truck Club Forum banner

P0449 Code SES light.

3437 Views 4 Replies 3 Participants Last post by  ajarman
This is my first SES light and I used my hypertech to read the code and P0449 came up. I researched it a little bit and seems kinda serious. Anybody else get this code before?


1 - 1 of 5 Posts
There are a few run downs on this it is a problem with the Evap purge valve. Im not sure where they are located on the NNBS chevies i know in the NBS trucks its on the frame rail and they will get plugged. It isnt anything that is going to cause damage, but getting it fixed is good for the emissions.

---------- Post added at 12:19 PM ---------- Previous post was at 12:15 PM ----------

Also from a little digging i would see if you just didnt tighten the gas cap as well.
1 - 1 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.