I have a 2004 ES330 bearing in mind a hestitation problem. It is fine from a full stop but subsequent to I go all but turns upon onto highway ramps, considering I pain 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 taking into consideration the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery thoroughly charged? With or without headlights on. Relatively new 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 as a result far? I ve cleaned the MAF sensor. Checked for contacts in the intake. in the same way as I put my Turbo OBDII app on, all seems fine except that the TPS stays constant re 30%. This is a drive-by-wire model hence it has not throttle cable or usual TPS. I tolerate the TPS is integrated with the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know previously I be next to 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 complete a fast defect locate if you unplug the meter and control the engine without it. if the engine condition is the same after that chances are the meter or the link to it is faulty. Its also worth cleaning the MAF sensor wires, as they can get coated like dirt higher than get older which subsequently offsets the reading. Use some open cleaner or brake cleaner to spray onto the wires to surgically remove the dirt upon no account adjoin the wires in the manner of all as they are definitely fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you stirring to date upon 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 feign many factors may cause the thesame symptom(s)