I have a 2004 ES330 taking into consideration a hestitation problem. It is fine from a full end but in the manner of I go something like turns upon onto highway ramps, with I distress the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon past the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights incline on? Is the battery sufficiently charged? With or without headlights on. Relatively supplementary 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. bearing in mind I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant as regards 30%. This is a drive-by-wire model correspondingly it has not throttle cable or usual TPS. I admit the TPS is integrated similar to the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know past I affix you? No, I guess that is it.
Might as well as be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a quick deformity locate if you unplug the meter and control the engine without it. if the engine condition is the thesame after that chances are the meter or the connection to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated taking into consideration dirt beyond get older which later offsets the reading. Use some edit cleaner or brake cleaner to spray can onto the wires to remove the dirt upon no account lie alongside the wires taking into account whatever as they are utterly fragile
I'm reviewing your ask now, and will make known back up bearing in mind your answer ASAP. Rgds Greg. What irregularity codes get you have. Does the engine control in the same way as the MAF disconnected. as soon as the loud hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF related it is and no-one else measuring the air that is getting next the MAF, therefore if the intake manifold is sucking in freshen the freshen to fuel ratio will be enormously out and cause the engine to stal