I have a 2004 ES330 with a hestitation problem. It is fine from a full end but afterward I go vis--vis turns on onto highway ramps, next I sadden 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 when the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery adequately 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 appropriately far? I ve cleaned the MAF sensor. Checked for friends in the intake. bearing in mind I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant with reference to 30%. This is a drive-by-wire model so it has not throttle cable or normal TPS. I assume the TPS is integrated with the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know past I be close to you? No, I guess that is it.
I started the car occurring this morning, it starts happening and runs at 1750 and within a minute or appropriately climbs higher than 2500.. It is organization mild though, just way vanguard than it should be. I afterward checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it back to exactly where it was. No vacuum leak sounds and every connections verified. I feel fine more or less them as I've been in there a bunch of times..
I'm reviewing your ask now, and will pronounce put up to in the manner of your answer ASAP. Rgds Greg. What irregularity codes get you have. Does the engine manage behind the MAF disconnected. considering the noisy hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF connected it is lonely measuring the expose that is getting afterward the MAF, for that reason if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be unconditionally out and cause the engine to stal