I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full end but afterward I go something like turns upon onto highway ramps, next I distress 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 next the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights approach on? Is the battery thoroughly charged? With or without headlights on. Relatively additional 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. past I put my Turbo OBDII app on, all seems good except that the TPS stays constant roughly 30%. This is a drive-by-wire model suitably 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 desire the mechanic to know since I connect you? No, I guess that is it.
Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a fast defect find if you unplug the meter and manage the engine without it. if the engine condition is the thesame subsequently chances are the meter or the association to it is faulty. Its as a consequence worth cleaning the MAF sensor wires, as they can acquire coated as soon as dirt beyond epoch which after that offsets the reading. Use some retrieve cleaner or brake cleaner to spray can onto the wires to cut off the dirt upon no account adjoin the wires taking into account anything as they are categorically fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms taking place and is warmed up? oftentimes in engine play in many factors may cause the similar symptom(s)