Fitted a second hand rev d DV to my cupra and now when I let off the throttle it makes a weird sound like something is sticking and then releasing, it does this just stood still aswel and with the slightest bit of throttle, the noise can be described as like when you put your finger in your beer bottle and force it out to make a funny noise (I know funny way to describe it but that's all I can refer it to lol)
I'm gunna try my old rev g again tomorrow as it was in good nick and see if that makes a difference as it seemed fine before I removed it.
Has anyone had this before tho, forgot to add the noise can be heard from the intake not the dv but that's the only thing I have changed since having the car mapped.
Cheers and any info/help is appreciated