HI, The belly bumper cover has to arrive off as a couple of demean headlamp assembly bolts are located at the rear it. Here are directions interest recall to rate utility using the rating page thus that I may receive credit. Thanks
Its also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not at your best pump will every consequences in insufficient fuel living thing delivered to the engine. Might plus be worth cleaning out the idle rapidity control motor / valve as these get clogged in the works bearing in mind carbon and some brake cleaner washed through helps clear things off.
next I start the car, the engine surges going on with 1200 and 2000 rpm put up to and forth. I changed the IAC and the TPS once no bend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to accustom yourself the idle enthusiasm screw to demean the rpm and it would retain for a while. Now, the engine is permanently surging to the lessening where I cannot steer it for radio alarm of damage to the drive train. Any experienced solution?