Hi every1, just bought a 2001 gs500. After a few miles, while idling it miss fired randomly there was a sort of ticking noise when this happened each time. I thought, it sounded like the engine just relying on 1 cylinder. The guy said he was messing around with the inlet manifold and restrictor. Nt sure if it is being flooded or something electrical. Hope 2 hear soon, Cheers, Dave