gents i have P0455 code,

loose fuel cap on DIC so tightened it and reset the code gone after a day and back

bought an after market fuel cap did a re-set boom code gone then i thought thats it!

and now its back again P0455, only one code

my question is to those who had this trouble code before, any idea whats next to check?

anyways i watched some u tube vids but cant find anything close to our H3

Thanks J

 

I had same issue turned out the vent solenoid went bad.

 

thanks MicJ, how hard to get this replace buy the part and can i do it myself?i checked underneath seems like only 1 bolt is holding the whole assembly

thanks again j

 

Hey J, i have the same code on my wife H3 and replaced the vapor canister vent shut valve with this one .

Now, you have to remove and re-use the plastic tube and install it to the new valve. Soak it on warm water for easy removal.

Let me know if you need more info as you helped me out before with the roof rack key.

 

Ya really easy to do yourself I took mine to dealer and just had them do it because I was just really busy and needed to pass emissions cost $390

 

]I'll pm yah if i get lost removing it LOL,yah i see you sent one to another member "roof key
thks J

 

thanks MicJ, my emissions is due nextyear, but i rather fix it now

tks J

 

This is what the dealer sells if you ask them, comes complete with the hose. No.1 on the pic. The part that i gave you is the cheapest way to fix that code.
http://parts.nalleygmc.com/showAssem...ssembly=436968