Quote:
Originally Posted by djmtsu
We have some coils we can swap in. Also, unhook the AFM from the airbox and have someone push the cone in a little when you start the car. If that makes a drastic difference, we might have found a winner. I think you can also unplug it altogether, and if it idles, but doesn't rev, it's also bad.
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Great suggestion, but he doesn't even need to go that far. Just remove the airbox lid, remove panel filter (assuming still all stock airbox & filter). Then he can reach in with a finger & move the AFM cone.
You don't want to move it all that much - if you push it too far in, the car should go pig rich & stall if it's idling.
An S5 won't run with the AFM unplugged; not sure if it will even start that way.