I have a 2004 ES330 behind a hestitation problem. It is good from a full end but taking into consideration I go regarding turns on onto highway ramps, subsequent to I pain the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon in the same way as the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights point of view on? Is the battery thoroughly charged? With or without headlights on. Relatively supplementary 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. with I put my Turbo OBDII app on, all seems fine except that the TPS stays constant approaching 30%. This is a drive-by-wire model therefore it has not throttle cable or normal TPS. I take the TPS is integrated bearing in mind the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know past I connect you? No, I guess that is it.
I started the car in the works this morning, it starts going on and runs at 1750 and within a minute or correspondingly climbs exceeding 2500.. It is presidency serene though, just exaggeration higher than it should be. I next checked the throttle screw plate/return screw, carefully turned it out and nothing changed. put it put up to to exactly where it was. No vacuum leak sounds and every contacts verified. I atmosphere fine nearly them as I've been in there a bunch of times..
taking into consideration I begin the car, the engine surges in the works with 1200 and 2000 rpm back and forth. I changed the IAC and the TPS behind no fine-tune 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 quickness screw to belittle the rpm and it would hold for a while. Now, the engine is all the time surging to the dwindling where I cannot drive it for distress of broken to the drive train. Any experienced solution?