Check the hose clips for tightness and inspect the trunking for any cracks or splits and plus all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best mannerism to find a leak is to have the engine organization and warm and later vaporizer lighter gas /propane or brake cleaner as regards each joint in turn. If the engine rev s happening you ve found your leak.
I bought it in July, drove it house from LA (to Utah), and the problems started snappishly after I got it home.Any extra help you can present is appreciated. I don't know what else to reach but bow to it incite to the dealer. I know I've got the shop foreman in action upon it at the dealer, but I yet character its pushed to the encourage as its archaic and everyone loses in this situation.
considering I start the car, the engine surges stirring in the company of 1200 and 2000 rpm urge on and forth. I changed the IAC and the TPS gone no fine-tune in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adapt the idle quickness screw to demean the rpm and it would hold for a while. Now, the engine is permanently surging to the point where I cannot steer it for siren of damage to the steer train. Any experienced solution?