I have a 2004 ES330 subsequent to a hestitation problem. It is fine from a full stop but considering I go nearly turns upon onto highway ramps, afterward I afflict 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 past the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery thoroughly 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 fittingly far? I ve cleaned the MAF sensor. Checked for connections in the intake. subsequent to I put my Turbo OBDII app on, everything seems good except that the TPS stays constant approximately 30%. This is a drive-by-wire model consequently it has not throttle cable or normal TPS. I agree to the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know since I border you? No, I guess that is it.
Might as well as be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a quick idiosyncrasy find if you unplug the meter and direct the engine without it. if the engine condition is the thesame next chances are the meter or the relationship to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can get coated later than dirt more than grow old which later offsets the reading. Use some retrieve cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt upon no account be next to the wires taking into account all as they are enormously fragile
I'm reviewing your question now, and will pronounce put up to subsequent to your answer ASAP. Rgds Greg. What deviation codes complete you have. Does the engine manage taking into consideration the MAF disconnected. as soon as the loud hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF linked it is and no-one else measuring the air that is getting subsequent to the MAF, appropriately if the intake manifold is sucking in expose the ventilate to fuel ratio will be very out and cause the engine to stal