I have a 2004 ES330 as soon as a hestitation problem. It is good from a full stop but following I go in the region of turns upon onto highway ramps, similar to I hurt the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon taking into account the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights perspective 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 suitably far? I ve cleaned the MAF sensor. Checked for links in the intake. like I put my Turbo OBDII app on, all seems fine except that the TPS stays constant regarding 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I acknowledge the TPS is integrated following the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know before I border you? No, I guess that is it.
Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a fast idiosyncrasy locate if you unplug the meter and manage the engine without it. if the engine condition is the thesame next chances are the meter or the attachment to it is faulty. Its then worth cleaning the MAF sensor wires, as they can acquire coated in the same way as dirt on top of get older which later offsets the reading. Use some contact cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account be next to the wires considering whatever as they are extremely fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you happening to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine take effect many factors may cause the similar symptom(s)