I have a 2004 ES330 as soon as a hestitation problem. It is good from a full end but in imitation of I go almost turns on onto highway ramps, in the same way as 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 behind the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights position on? Is the battery fully 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 therefore far? I ve cleaned the MAF sensor. Checked for contacts in the intake. once I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant approaching 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I admit the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know before I be close to you? No, I guess that is it.
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a quick fault find if you unplug the meter and manage the engine without it. if the engine condition is the same later chances are the meter or the attachment to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated taking into consideration dirt over become old which then offsets the reading. Use some get into cleaner or brake cleaner to vaporizer onto the wires to remove the dirt on no account adjoin the wires behind anything as they are extremely fragile
I'm reviewing your ask now, and will publish support afterward your respond ASAP. Rgds Greg. What defect codes get you have. Does the engine control similar to the MAF disconnected. taking into account the noisy hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is lonesome measuring the freshen that is getting once the MAF, fittingly if the intake manifold is sucking in expose the ventilate to fuel ratio will be unquestionably out and cause the engine to stal