I have a 2004 ES330 next a hestitation problem. It is good from a full stop but subsequently I go just about turns upon onto highway ramps, bearing in mind I sadden the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon following the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights outlook on? Is the battery fully charged? With or without headlights on. Relatively other battery. Mechanic s Assistant: What is the model of your 04 Lexus? ES330 Mechanic s Assistant: Are you fixing your vehicle yourself? What have you tried so far? I ve cleaned the MAF sensor. Checked for contacts in the intake. in the same way as I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant a propos 30%. This is a drive-by-wire model for that reason it has not throttle cable or normal TPS. I take the TPS is integrated subsequent to the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know back I border you? No, I guess that is it.
Its also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a in poor health pump will all repercussion in insufficient fuel bodily delivered to the engine. Might moreover be worth cleaning out the idle rapidity rule motor / valve as these get clogged in the works in the same way as carbon and some brake cleaner washed through helps clear things off.
when I begin the car, the engine surges up between 1200 and 2000 rpm incite and forth. I misrepresented the IAC and the TPS later no tweak 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 eagerness screw to demean the rpm and it would support for a while. Now, the engine is forever surging to the point where I cannot steer it for bell of damage to the drive train. Any experienced solution?