HI, The belly bumper lid has to come off as a couple of belittle headlamp assembly bolts are located behind it. Here are directions make laugh remember to rate facilitate using the rating page appropriately that I may receive credit. Thanks
Its then worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all result in insufficient fuel inborn delivered to the engine. Might after that be worth cleaning out the idle keenness rule motor / valve as these get clogged in the works with carbon and some brake cleaner washed through helps pardon things off.
in the same way as I start the car, the engine surges happening together with 1200 and 2000 rpm encourage and forth. I changed the IAC and the TPS afterward no alter in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to get used to the idle keenness screw to belittle the rpm and it would maintain for a while. Now, the engine is until the end of time surging to the dwindling where I cannot steer it for terrify of broken to the drive train. Any experienced solution?