I have a 2004 ES330 once a hestitation problem. It is good from a full end but subsequent to I go not far off from turns upon onto highway ramps, as soon as I distress 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 subsequent to the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery fully 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 for that reason far? I ve cleaned the MAF sensor. Checked for associates in the intake. once I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant in the region of 30%. This is a drive-by-wire model suitably it has not throttle cable or normal TPS. I acknowledge the TPS is integrated once the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know before I border you? No, I guess that is it.
Might then be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a fast aberration locate if you unplug the meter and rule the engine without it. if the engine condition is the same after that chances are the meter or the association to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can acquire coated like dirt higher than times which then offsets the reading. Use some gate cleaner or brake cleaner to spray can onto the wires to sever the dirt upon no account adjoin the wires taking into consideration all as they are categorically fragile
This could be a large vacuum leak ,with the MAF partnered it is unaided measuring the freshen that is getting following the MAF, correspondingly if the intake manifold is sucking in air the ventilate to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. similar to carb cleaner spray vaporizer in the place of the hissing in imitation of the engine organization and in imitation of you hear the engine stall or rev far along there is the leak ,could be a bad vacuum hose bad gasket on the manifold.