I have a 2004 ES330 like a hestitation problem. It is good from a full stop but with I go all but turns on onto highway ramps, taking into consideration I sadden 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 when the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights outlook on? Is the battery fully 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 so far? I ve cleaned the MAF sensor. Checked for friends in the intake. afterward I put my Turbo OBDII app on, everything seems good except that the TPS stays constant in this area 30%. This is a drive-by-wire model fittingly it has not throttle cable or usual TPS. I agree to the TPS is integrated once the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know previously I connect 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 reach a quick anomaly find if you unplug the meter and run the engine without it. if the engine condition is the thesame later chances are the meter or the link to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated in the manner of dirt on top of period which later offsets the reading. Use some admission cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account be adjacent to the wires when everything as they are agreed fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you happening to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms up and is warmed up? oftentimes in engine achievement many factors may cause the thesame symptom(s)