same thing happend to me the black box that went under the aftercooler, had a vac line that was kinked when it was looping under the box, simple fix but VERY annoying

good luck to you

 

so the vac line was just kinked (as in squished?)

how did you fix it?

 

just had to pull some slack in the line, just look very closely, after install i got very eager and was bugged by the CEL. just take your time and comb on line at a time and you should find it, post pics of your bay as well and we may be able to offer some insight if the guys rerouted a hose by accident

 

noob question:
from the link of https://www.s2ki.com/forums/index.php?showtopic=105368

the top line (#1 pic) goes straight to my godzilla bov? thats how mine is at right now.

 

It should connect at a y gate and look like this...

Tim

 

think that is how mine is like and still getting the code....

 

why don't you take a picture of your vac lines and post it so we can see.If it makes you feel any better P0411 is a harmless CELL.won't damage your car in any way.




peace

 

so i checked all the lines and i dont see any tears or rips. I searched on the forum and someone did run a code P0411 and it had identical problems as i have right now.

I can clear the code and it wont come on for a good 12-24 hours. When the engine gets cold and i turn on the car, it pops on again. I mean, if the car was warmed up, then there is no problem but the CEL only comes on when the engines "gets" warmed up.

could this be that the inside of the vacuum lines are bad? if so, can i just change those out and it would fix the problem?

 

Its a 2 trip sensor. You have to make two cold starts for the light to come back on. I finally found the hose on my car that was causing the same code. Apparently last time I was at a shop they undid a few zip ties and the hose got too close to the pulley and the pulley got mad at it and bit it. Hopefully you have just a simple problem like a cracked hose or something loose.