I removed my rats nest on my s5 t2 and it the same as before which was pretty solid. After this though I noticed that the airflow percentage on my SAFCII which normally read 0.8-0.9% now reads 1.3-1.4%. I'm wondering what if anything has been affected and would change the amount of airflow althought it seems pretty minimal.

I should note that the vac line coming from the TB is still at the lowest nipple on the back of the UIM as it was stock and I ran the vac line from the angled one on the inside of the LIM to the FPR. Any problems with this? I have the injector air bleeds going to stock the correct nipples on the back of the UIM.

No vac leaks as far as I can tell. I havent had time to get an oil catch can in yet but have the line coming from the center iron venting to the atmosphere.

On a weird sidenote, this morning when I went to start my car the SAFC didnt turn on when I put the ignition to on like normally, somehow my EGI fuse had blown. How? I dont know.

Any ideas?

 

Possibly a short on one of the injectors/etc. Sometimes they get pinched when bolting the intakes back down. You can also try to recalibrate the s-afc, though with changes so minimal, as long as it has no detrimental effect, I don't see much reason to worry.

 

bump

Just drove it around for a while and airflow is a little lower now at 1.1%. Another thing, the idle hangs around 1000rpms occassionally on decel when coming to a stop in neutral. If I rev it itll settle back down to around 750rpms. Anything to do with a part of the rat's nest removal? Doesnt really bug me but I just want to know if it's some other problem I might have.

 

I havnt really messed with my safcII that much. I still have the rats nest, and I have the same problem. Not really sure if it's a problem overall. Though my idle hits around 1 grand at a stop, then goes down to about 700 and back up to 750-800. It doesnt bother me as well, just as long as my car doesnt die.