Hi everyone! I have a 2014 prowler HDX 700 EFI. Usually first when I start it all is good but after a bit on the trail is starts acting up. When I let off the gas it will either be idleing to high around 1800 - 1900 RPM or it will idle to low at around 800 RPM or so. The idle air motor ( ISC Valve) was replaced with one from a used machine and seemed to improve it for a while but having the same issue again. Just wondering if someone has any suggestions before I drop 300 or so on another valve. Thanks!!