I've been thinking of cleaning up my engine bay over the last week. So I ordered a Moroso 1.25" filler neck and radiator cap from jegs. Last night I picked up a couple feet of vacuum line, hose clamps, and a small K&N w/ 1" inlet from the auto parts store.
I removed the metal plate around the dipstick that holds the N112, N249 valves, sai hoses, along with a rats nest of vacuum lines. I did find that the line going from the N112 to Combi valve was dry rotted anyways. I also removed the formed metal lines that ran to the vacuum canister and factory diverter valve.
I rerouted the diverter valve vacuum line to the short hose that goes to a check valve off the throttle body. I used the factory T fitting that was under the metal plate. I left the N249 & N112 valves plugged in but nothing connected to them for today to try it out, so far so good.
I was a little worried how cold starts would be without the N112 this morning. All is good no check engine lights, diverter valve response is excellant, way better than before with way less flutter, cold start idle was improved and more stable, seemed to settle down to normal idle quicker.
I cut the sai hose that used to go all the way over to the factory air box and it now has a K&N filer on it right behind the alternator.
Filler neck should come in tomorrow and will have pics of that project as well. The SAI pump and Combi valve are next to go!
I will get some pics up soon, it was dark out when I was finishing up and I needed some