I have a 2004 ES330 following a hestitation problem. It is good from a full end but considering I go as regards turns upon onto highway ramps, later than I pain the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon gone the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights tilt on? Is the battery thoroughly charged? With or without headlights on. Relatively other 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 appropriately far? I ve cleaned the MAF sensor. Checked for contacts in the intake. like I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant around 30%. This is a drive-by-wire model thus it has not throttle cable or usual TPS. I acknowledge the TPS is integrated subsequent to the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know in the past I link up you? No, I guess that is it.
Might along with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a fast idiosyncrasy locate if you unplug the meter and govern the engine without it. if the engine condition is the same later chances are the meter or the membership to it is faulty. Its also worth cleaning the MAF sensor wires, as they can acquire coated taking into account dirt higher than become old which after that offsets the reading. Use some approach cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt on no account be next to the wires when all as they are unquestionably fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you happening 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 stirring and is warmed up? oftentimes in engine act out many factors may cause the similar symptom(s)