Have a 2010 genie z80/60 boom lift. Was working fine and sat at a site for several weeks without use. Went to pick it up and whenever you go up on the primary or secondary boom it will kill the engine. High or low idle no different. All the other functions operate perfectly fine. Strange thing is if you just barely engage the up switch it will load the engine but if it survives that you can then reengage the up function and it will work fine. That is until you go down with boom and then if went back up same thing again it will attempt to load up and kill engine. All wires look fine that I could see. I’m guessing it’s an issue with Hydrualic solenoid or something along those lines. I found the repair manual online so know which ones they are just not sure best way to diagnose this issue. SN on machine is Z8010-2668