I have a 2004 ES330 in the manner of a hestitation problem. It is fine from a full end but similar to I go a propos turns upon onto highway ramps, afterward 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 same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery fully charged? With or without headlights on. Relatively extra 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 connections in the intake. later than I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant with reference to 30%. This is a drive-by-wire model as a result it has not throttle cable or normal TPS. I believe the TPS is integrated in imitation of the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know previously 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 attain a quick deformity find if you unplug the meter and manage the engine without it. if the engine condition is the similar next chances are the meter or the membership to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can get coated considering dirt more than mature which then offsets the reading. Use some door cleaner or brake cleaner to spray can onto the wires to cut off the dirt on no account be next to the wires following anything as they are no question fragile
This could be a large vacuum leak ,with the MAF combined it is by yourself measuring the freshen that is getting subsequent to the MAF, thus if the intake manifold is sucking in ventilate the ventilate to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. afterward carb cleaner spray can spray in the place of the hissing once the engine processing and with you listen the engine stall or rev sophisticated there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.