I have a 2004 ES330 subsequently a hestitation problem. It is fine from a full stop but in the same way as I go roughly speaking turns on onto highway ramps, once 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 in imitation of the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant 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 friends in the intake. in imitation of I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant concerning 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I allow the TPS is integrated past the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know previously I link up 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 fast malformation locate if you unplug the meter and run the engine without it. if the engine condition is the same subsequently chances are the meter or the attachment to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can acquire coated following dirt over grow old which then offsets the reading. Use some entre cleaner or brake cleaner to spray onto the wires to separate the dirt on no account be next to the wires afterward everything as they are enormously fragile
I'm reviewing your question now, and will publish back when your reply ASAP. Rgds Greg. What deformity codes complete you have. Does the engine rule next the MAF disconnected. taking into account the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF associated it is and no-one else measuring the freshen that is getting behind the MAF, hence if the intake manifold is sucking in expose the air to fuel ratio will be categorically out and cause the engine to stal