I have a 2004 ES330 taking into consideration a hestitation problem. It is good from a full stop but afterward I go nearly turns upon onto highway ramps, when I depress the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon similar to the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point of view on? Is the battery sufficiently charged? With or without headlights on. Relatively new 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 suitably far? I ve cleaned the MAF sensor. Checked for associates in the intake. afterward I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant on 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I acknowledge the TPS is integrated later the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know past I be next to you? No, I guess that is it.
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a fast fault locate if you unplug the meter and run the engine without it. if the engine condition is the thesame next chances are the meter or the link to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated subsequent to dirt greater than time which next offsets the reading. Use some gain access to cleaner or brake cleaner to spray can onto the wires to surgically remove the dirt on no account touch the wires taking into consideration anything as they are very fragile
I'm reviewing your question now, and will read out incite next your answer ASAP. Rgds Greg. What deviation codes attain you have. Does the engine rule gone the MAF disconnected. considering the noisy hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF combined it is isolated measuring the let breathe that is getting in imitation of the MAF, suitably if the intake manifold is sucking in air the air to fuel ratio will be completely out and cause the engine to stal