Check the hose clips for tightness and inspect the trunking for any cracks or splits and next every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best mannerism to locate a leak is to have the engine admin and hot and subsequently spray lighter gas /propane or brake cleaner going on for each joint in turn. If the engine rev s going on you ve found your leak.
I bought it in July, drove it house from LA (to Utah), and the problems started quickly after I got it home.Any further incite you can offer is appreciated. I don't know what else to reach but put up with it support to the dealer. I know I've got the shop foreman vigorous upon it at the dealer, but I still environment its pushed to the support as its outmoded and everyone loses in this situation.
taking into consideration I start the car, the engine surges taking place surrounded by 1200 and 2000 rpm help and forth. I changed the IAC and the TPS in imitation of no alter in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to familiarize the idle zeal screw to degrade the rpm and it would withhold for a while. Now, the engine is permanently surging to the lessening where I cannot steer it for anxiety of damage to the steer train. Any experienced solution?