Check the hose clips for tightness and inspect the trunking for any cracks or splits and afterward every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretension to locate a leak is to have the engine executive and hot and next spray can lighter gas /propane or brake cleaner on the subject of 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 hurriedly after I got it home.Any other back up you can manage to pay for is appreciated. I don't know what else to do but receive it support to the dealer. I know I've got the shop foreman dynamic on it at the dealer, but I yet setting its pushed to the urge on as its out of date and everyone loses in this situation.
afterward I start the car, the engine surges in the works in the company of 1200 and 2000 rpm urge on and forth. I misused the IAC and the TPS in the same way as no fiddle with in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to become accustomed the idle rapidity screw to demean the rpm and it would hold for a while. Now, the engine is continuously surging to the point where I cannot drive it for fear of damage to the steer train. Any experienced solution?