[///M-N55]

Everything about the JB4 is so cool to me but I'm having an annoying problem , i have a strange Squealing sound coming from the engine bay when I'm coming to a stop or when i left off Throttle. It could be PCV related or ChargePipe related it's hard to describe, and i have no idea what side of the engine its coming from, when i come to a complete stop, the sound goes away, i really only hear when I'm coasting with my foot off the gas pedal. i hear the sound in maps 1,2 and 5, but when i set it to map 0, the sound goes away. Can anyone help me? PFA