I have a 2004 ES330 subsequent to a hestitation problem. It is good from a full end but later than I go with reference to turns on onto highway ramps, gone I hurt the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon in the same way as the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights slope on? Is the battery abundantly 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 appropriately far? I ve cleaned the MAF sensor. Checked for connections in the intake. similar to I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant just about 30%. This is a drive-by-wire model consequently it has not throttle cable or usual TPS. I take the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know since I connect you? No, I guess that is it.
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a quick aberration locate if you unplug the meter and govern the engine without it. if the engine condition is the same later chances are the meter or the attachment to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can get coated subsequently dirt higher than time which then offsets the reading. Use some way in cleaner or brake cleaner to spray onto the wires to surgically remove the dirt upon no account be adjacent to the wires when all as they are unquestionably fragile
This could be a large vacuum leak ,with the MAF united it is without help measuring the freshen that is getting in imitation of the MAF, fittingly if the intake manifold is sucking in freshen the expose to fuel ratio will be utterly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in imitation of carb cleaner spray can spray in the place of the hissing as soon as the engine processing and similar to you listen the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket on the manifold.