2001 Ford 5 4 Engine Diagram

I have a 2004 ES330 bearing in mind a hestitation problem. It is good from a full end but with I go in relation to turns upon onto highway ramps, as soon as I afflict 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 considering the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery abundantly 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 so far? I ve cleaned the MAF sensor. Checked for connections in the intake. later than I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant on the order of 30%. This is a drive-by-wire model in view of that it has not throttle cable or normal TPS. I acknowledge the TPS is integrated in the same way as the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know back I be close to 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 tiny more not quite the misery history. It currently has a master tech qualified idle air control valve and tps installed. without touching anything, the last (used) ecu and my original, would rule in the car without this symptom.

taking into account I start the car, the engine surges stirring in the company of 1200 and 2000 rpm back and forth. I untouched the IAC and the TPS subsequently no amend in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to get used to the idle zeal screw to belittle the rpm and it would retain for a while. Now, the engine is all the time surging to the tapering off where I cannot steer it for startle of damage to the steer train. Any experienced solution?

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