Emission culprit

[Gussie2000]

I had that same code before i started replacing all the parts,now the only code pop in is p0446.

Still waiting for some one to tell me how to remove that valve,it's located at the top-rear of the engine on the driver's side.

I'll post couple of pics to pin point the right location .

[Gussie2000]

Alright !

I figured all out.

Thanks for all the inputs

[Marlin]

Alright !

I figured all out.

Thanks for all the inputs

Aaaaaaaaannnnnnnddddddddd.........

[ZEUS]

Aaaaaaaaannnnnnnddddddddd.........

HAHAHA! Well said...

[Marlin]

HAHAHA! Well said...

When I wrote that, for some reason I was thinking of Ldub, with the exception that I did not include any dancing fruit or chocolate primates.

[Gussie2000]

The VSV is held in place by a what i will call it is a metal cover that protects the fuel pressure regulator,this cover its self is held by two phillips screws to the intake manifold,the horrible story here is that one of the screws is right behind the intake manifold,too close to the firewall & the ABS vacuum lines which makes it almost impossible to remove .

So yesterday morning i went down stairs to deal with it........After several tries i give up the screw located behind the intake manifold is just too difficult to grab on.

My mech told me that the VSV is originally in OFF position (open) so once the ECU software commands the the EVAP to test its self that valve gets onto ON position (close) so the vacuum process is initiated.

I turn on the horse for 10 minutes,i asked my girl to gas up the horse for 5 to 10 more additional minutes so the ECU will engage the EVAP to run a test,i unplugged the VSV electricall conector & use a 12v transformer to test the VSV but to be honest i wasn't able to verify its working conditions after all & no way to know if i did it the right way

Then there's a cylinder canister located next to the black fuse box which i noticed is interconected with the EGR & that VSV by a two way hoses & now wonder if that canister could be broken/clogged.

Because my mech's smock machine is off duty at this time he cannot run a smock test on my horse.

So by the mean time i got nothing to do but wait 'till my mech's smock machine is back to duty

[Marlin]

Alright, now we are getting somewhere. As for the FPR cover, search the site for fuel pressure regulator, you will see a great write up on replacement. I bought an allen key set and ground one down to fit that rear screw. After I was done, I opted to not install that rear screw. That was back in Mar before Moab, no problems to date. I am gonna take a look at my VSV out of curiosity. But ultimately, P0440 means nothing to me, just an emissions related thing, the truck runs great, no problems....knock on wood.... I am not sure what a smog test would do for you? I don't even know what that canister in the front does!!! Time to do some research when i get home from work.