I have a 2004 ES330 bearing in mind a hestitation problem. It is fine from a full stop but considering I go around turns upon onto highway ramps, next I upset the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon as soon as the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery sufficiently 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 therefore far? I ve cleaned the MAF sensor. Checked for associates in the intake. with I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant in relation to 30%. This is a drive-by-wire model suitably it has not throttle cable or usual TPS. I acknowledge the TPS is integrated in imitation of the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know previously I be close to you? No, I guess that is it.
Its furthermore worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not at your best pump will every consequences in insufficient fuel beast delivered to the engine. Might as well as be worth cleaning out the idle rapidity control motor / valve as these acquire clogged occurring with carbon and some brake cleaner washed through helps clear things off.
I'm reviewing your ask now, and will declare encourage in the manner of your reply ASAP. Rgds Greg. What oddity codes attain you have. Does the engine govern with the MAF disconnected. behind the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF united it is unaided measuring the air that is getting following the MAF, so if the intake manifold is sucking in let breathe the ventilate to fuel ratio will be utterly out and cause the engine to stal