I have a 2004 ES330 with a hestitation problem. It is good from a full stop but in the manner of I go just about turns upon onto highway ramps, taking into account I depress the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon similar to the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights approach 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 correspondingly far? I ve cleaned the MAF sensor. Checked for associates in the intake. behind I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant approximately 30%. This is a drive-by-wire model in view of that it has not throttle cable or normal TPS. I acknowledge the TPS is integrated afterward the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know previously I link up you? No, I guess that is it.
Might plus be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a fast defect find if you unplug the meter and govern the engine without it. if the engine condition is the thesame subsequently chances are the meter or the attachment to it is faulty. Its as a consequence worth cleaning the MAF sensor wires, as they can acquire coated in imitation of dirt over mature which after that offsets the reading. Use some open cleaner or brake cleaner to spray onto the wires to surgically remove the dirt on no account be adjacent to the wires later than anything as they are unquestionably fragile
I'm reviewing your question now, and will state back up bearing in mind your answer ASAP. Rgds Greg. What deformity codes pull off you have. Does the engine govern taking into account the MAF disconnected. next the noisy hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF joined it is lonely measuring the freshen that is getting with the MAF, so if the intake manifold is sucking in air the let breathe to fuel ratio will be definitely out and cause the engine to stal