I have a 2004 ES330 similar to a hestitation problem. It is fine from a full end but in imitation of I go re turns upon onto highway ramps, next 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 past the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery fully 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 as a result far? I ve cleaned the MAF sensor. Checked for contacts in the intake. when I put my Turbo OBDII app on, anything seems good except that the TPS stays constant a propos 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I take the TPS is integrated when the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know before I attach you? No, I guess that is it.
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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a little more just about the burden history. It currently has a master tech ascribed idle freshen govern valve and tps installed. without upsetting anything, the last (used) ecu and my original, would rule 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 upon 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 decree many factors may cause the thesame symptom(s)
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