J
2017 Pioneer 500 .. 9000 miles... cold start up, would idle fine, for quite a while, as soon as it was revved, no more idle.. stall out when throttle off.... key off key on, restart but no idle.. if throttle opened a bit, engine could be kept running, but if let off throttle, engine died.. wait till engine cold, could start and idle again.. if revved, no more idle after that.. assumed the IACV but made no diff (these usually get dirty on the tiny threads and cant control the idle..) then assumed electrical issue but anyway, ended up the intake exhaust valves had zero clearance.. adjusted, worked perfect from then on.. i will assume the decompressor that is incorporated onto the camshaft is contributing to the odd symptoms.. anyway.. hope that helps someone.. 6 int 9 ex.. thou..
