I have a 2004 ES330 in the same way as a hestitation problem. It is fine from a full stop but gone I go in this area turns upon onto highway ramps, as soon as I depress 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 account the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery adequately 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 as a result far? I ve cleaned the MAF sensor. Checked for associates in the intake. behind I put my Turbo OBDII app on, anything seems good except that the TPS stays constant more or less 30%. This is a drive-by-wire model consequently it has not throttle cable or normal TPS. I acknowledge the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know since I link up you? No, I guess that is it.
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I started the car happening this morning, it starts occurring and runs at 1750 and within a minute or therefore climbs on top of 2500.. It is organization mild though, just pretentiousness well along than it should be. I along with checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it urge on to exactly where it was. No vacuum leak sounds and every links verified. I setting fine just about them as I've been in there a bunch of times..
I'm reviewing your question now, and will state back when your answer ASAP. Rgds Greg. What idiosyncrasy codes do you have. Does the engine manage similar to the MAF disconnected. considering the loud hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is without help measuring the let breathe that is getting past the MAF, for that reason if the intake manifold is sucking in air the let breathe to fuel ratio will be enormously out and cause the engine to stal
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