I have a 2004 ES330 later a hestitation problem. It is fine from a full stop but following I go roughly speaking turns on onto highway ramps, following I distress the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon next the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights outlook on? Is the battery adequately charged? With or without headlights on. Relatively additional 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 appropriately far? I ve cleaned the MAF sensor. Checked for connections in the intake. as soon as I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant as regards 30%. This is a drive-by-wire model as a result it has not throttle cable or normal TPS. I give a positive response the TPS is integrated past the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know before I attach you? No, I guess that is it.
I started the car occurring this morning, it starts taking place and runs at 1750 and within a minute or appropriately climbs exceeding 2500.. It is direction serene though, just exaggeration complex than it should be. I plus checked the throttle screw plate/return screw, with intent turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and all friends verified. I character good virtually them as I've been in there a bunch of times..
in imitation of I begin the car, the engine surges happening in the middle of 1200 and 2000 rpm incite and forth. I misrepresented the IAC and the TPS with no change in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to get used to the idle speed screw to belittle the rpm and it would preserve for a while. Now, the engine is every time surging to the point where I cannot steer it for terror of damage to the drive train. Any experienced solution?