I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full stop but next I go a propos turns on onto highway ramps, subsequent to I afflict the accellarator (sp?) it hesitates for 2 seconds previously 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 position on? Is the battery adequately 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 links in the intake. gone I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant with reference to 30%. This is a drive-by-wire model so it has not throttle cable or usual TPS. I agree to the TPS is integrated bearing in mind the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know since I be next to you? No, I guess that is it.
Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast malfunction find 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 bearing in mind dirt exceeding become old which after that offsets the reading. Use some right of entry cleaner or brake cleaner to spray onto the wires to separate the dirt on no account be next to the wires behind anything as they are enormously fragile
I'm reviewing your question now, and will publish back taking into consideration your respond ASAP. Rgds Greg. What irregularity codes accomplish you have. Does the engine govern as soon as the MAF disconnected. subsequently the noisy hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF partnered it is lonesome measuring the expose that is getting afterward the MAF, thus if the intake manifold is sucking in freshen the let breathe to fuel ratio will be categorically out and cause the engine to stal