I have a 2004 ES330 afterward a hestitation problem. It is good from a full stop but subsequently I go as regards turns upon onto highway ramps, when 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 similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights tilt 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 for that reason far? I ve cleaned the MAF sensor. Checked for friends in the intake. with I put my Turbo OBDII app on, anything seems good except that the TPS stays constant roughly speaking 30%. This is a drive-by-wire model in view of that it has not throttle cable or normal TPS. I say you will the TPS is integrated subsequently the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know before I border you? No, I guess that is it.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a tiny more virtually the misfortune history. It currently has a master tech credited idle air rule valve and tps installed. without moving anything, the last (used) ecu and my original, would run in the car without this symptom.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place 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 happening and is warmed up? oftentimes in engine work many factors may cause the thesame symptom(s)