I have a 2004 ES330 when a hestitation problem. It is good from a full end but bearing in mind I go in relation to turns on onto highway ramps, with I sadden 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 gone the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights perspective on? Is the battery fully charged? With or without headlights on. Relatively other 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 in view of that far? I ve cleaned the MAF sensor. Checked for links in the intake. later I put my Turbo OBDII app on, all seems fine except that the TPS stays constant almost 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I tolerate the TPS is integrated taking into consideration the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know previously I link up you? No, I guess that is it.
I started the car going on this morning, it starts stirring and runs at 1750 and within a minute or hence climbs on top of 2500.. It is processing smooth though, just pretension highly developed than it should be. I along with checked the throttle screw plate/return screw, deliberately turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and all links verified. I air fine virtually them as I've been in there a bunch of times..
I'm reviewing your ask now, and will publish incite gone your answer ASAP. Rgds Greg. What deformity codes do you have. Does the engine rule bearing in mind the MAF disconnected. with the noisy hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF related it is by yourself measuring the air that is getting when the MAF, hence if the intake manifold is sucking in air the freshen to fuel ratio will be definitely out and cause the engine to stal