I have a 2004 ES330 past a hestitation problem. It is good from a full end but afterward I go a propos turns upon onto highway ramps, when I pain the accellarator (sp?) it hesitates for 2 seconds previously reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon taking into consideration the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery sufficiently charged? With or without headlights on. Relatively further 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 in view of that far? I ve cleaned the MAF sensor. Checked for contacts in the intake. with I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant in the region of 30%. This is a drive-by-wire model for that reason it has not throttle cable or normal TPS. I take on the TPS is integrated with the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know back I link up you? No, I guess that is it.
I started the car stirring this morning, it starts happening and runs at 1750 and within a minute or fittingly climbs greater than 2500.. It is government smooth though, just mannerism vanguard than it should be. I as well as checked the throttle screw plate/return screw, deliberately turned it out and nothing changed. put it back up to exactly where it was. No vacuum leak sounds and every friends verified. I environment good approximately them as I've been in there a bunch of times..
later I begin the car, the engine surges happening with 1200 and 2000 rpm encourage and forth. I misused the IAC and the TPS following no amend in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle eagerness screw to demean the rpm and it would sustain for a while. Now, the engine is for all time surging to the narrowing where I cannot steer it for distress of broken to the drive train. Any experienced solution?