[JimThot]

So i did the 330i conversion on my 06 325i. i've been recently getting the code in the title and now i'm not sure if the DISA's are actually working or not. no check engine light and when i unplug one of the disas the dme knows i did it

[bluewater328]

Originally Posted by JimThot

So i did the 330i conversion on my 06 325i. i've been recently getting the code in the title and now i'm not sure if the DISA's are actually working or not. no check engine light and when i unplug one of the disas the dme knows i did it

You should test it with INPA. It'd actually be better to pull it out and test. I believe 2AAC refers to the larger outside DISA. So you could pull this out to test without taking off the manifold.

And you'll never get a CEL for it since the car can still function (just less power). Anecdotally, even if you didn't get a code, the DISA could be failing as sometimes the car actuates the servo but the gear may be dislodged, etc — so car thinks it's working even tho it isn't.