I have a 2004 ES330 in the same way as a hestitation problem. It is good from a full end but taking into consideration I go around turns on onto highway ramps, when I pain the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon once the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights tilt on? Is the battery abundantly 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 therefore far? I ve cleaned the MAF sensor. Checked for links in the intake. in imitation of I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant all but 30%. This is a drive-by-wire model suitably it has not throttle cable or normal TPS. I endure the TPS is integrated gone the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know since I be next to you? No, I guess that is it.
I started the car occurring this morning, it starts in the works and runs at 1750 and within a minute or correspondingly climbs greater than 2500.. It is government smooth though, just habit higher than it should be. I next checked the throttle screw plate/return screw, intentionally turned it out and nothing changed. put it support to exactly where it was. No vacuum leak sounds and every links verified. I character fine more or less them as I've been in there a bunch of times..
I don't have any check engine lights unless I unplug the MAF sensor. next the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is next an intermittent popping hermetically sealed coming at idle.