[rich6111]

can you just maybe pull 51 fuse under hood?

[KingLT1]

Originally Posted by rich6111

can you just maybe pull 51 fuse under hood?

fuse 51 has nothing to due with the AFM valves. That fuse is for the NPP valves.

[rich6111]

they were talking about the npp.they were changing from axle back unless i read it wrong.

[KingLT1]

Originally Posted by rich6111

they were talking about the npp.they were changing from axle back unless i read it wrong.

Originally Posted by cmitchell17

I got the dealer to do the epoxy fix to my NPP at about 30k, I'm at 65k now and things are rattling like crazy. I tried to clean and epoxy the valves today, which I think I did improve the rattle or either I fixed one rattle and another still remains.


I used my scanner to step up through the rpms and see if I could make it rattle, it kind of worked at about 1500rpms, but it sounds like its coming from inside the suitcase muffler.


I also had a rattle up front near the cats, I saw a TSB about the bracket that holds the cat needing a locknut put on it. I ended up taking off the secondary cat heat shield and using a impact gun to re-tighten the bracket that holds the primary cats on. Thankfully that fixed that rattle, but the rattle that still remains I feel like might be from the AFM valves?


It appears the "actuator" PN: 22839592, is the same for the AFM valves and NPP. So I would think the AFM valves would have the exact same rattle problem.


Has anyone tried taking the actuators off? It would be a lot easier to epoxy or weld on or try to fix if it was out of the car. I could also take the whole actuator out and disable AFM, im not sure how I would plug it? I guess the manual cars have some piece that blocks off the actuator hole? or either the exhaust is a different part number for m6 cars?

Reads like OP had a few rattles. 2 of them were fixed, 1 remains and AFM is the suspect.

[cmitchell17]

So I got under the car with a cutter and tools ready and I was about to cut near the valve and pull the whole muffler side out so I could get to the AFM valve and try to epoxy it outside of the car, but then I decided against it. There is just not enough room to cut and have enough pipe to put a clamp back over, plus there is not good straight section to put the clamp back over either. I think I could have made it work but it would have been real bad looking. I think I could have cut the whole section out from the AFV valve to the muffler inlet but I would still have trouble connecting without a straight section of pipe.

But I have another idea, I was thinking of getting a drill and drilling out the tit where this supposed ceramic pin that vibrates is supposedly located:


So I feel like I could drill this enough and maybe crack the ceramic pin to where it would fall out. I could then epoxy over the hole. I feel like the valve should be well supported enough to where even if the ceramic pin is gone it is still strong enough to support itself?


I know drilling right on the tit part is going to be hard maybe there is some better tool I could use? Anyone have any ideas?