I have a 2004 ES330 subsequent to a hestitation problem. It is fine from a full stop but later I go approaching turns upon onto highway ramps, in the same way as I distress 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 when the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery fully charged? With or without headlights on. Relatively further 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 friends in the intake. following I put my Turbo OBDII app on, all seems good except that the TPS stays constant not far off from 30%. This is a drive-by-wire model suitably it has not throttle cable or normal TPS. I bow to the TPS is integrated taking into consideration the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know past I connect 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 tell you a tiny more just about the difficulty history. It currently has a master tech ascribed idle freshen direct valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would run in the car without this symptom.
This could be a large vacuum leak ,with the MAF combined it is unaided measuring the air that is getting afterward the MAF, correspondingly if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be extremely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. considering carb cleaner spray can spray can in the place of the hissing in the same way as the engine running and taking into account you hear the engine stall or rev future there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
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