RE: Official HPI MT2 Thread
I'm probably wrong, but I think that if you get a increase in RPM's and then cutoff at idle the LSN is lean.
Did you try pinching the fuel line after blip the throttle to clear it out? It should rev a little, then cut out in about 3-4 seconds. I know a lot of people don't like this, but it was the only way for me to get my LSN back after I monkeyed with it.
Anty