I have a 2004 ES330 as soon as a hestitation problem. It is fine from a full end but in the same way as I go just about turns on onto highway ramps, subsequently I depress the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon considering the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights twist 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 fittingly far? I ve cleaned the MAF sensor. Checked for contacts in the intake. following I put my Turbo OBDII app on, all seems fine except that the TPS stays constant with reference to 30%. This is a drive-by-wire model therefore it has not throttle cable or normal TPS. I recognize the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know before I link up 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 tell you a little more about the trouble history. It currently has a master tech ascribed idle let breathe direct valve and tps installed. without distressing anything, the last (used) ecu and my original, would direct in the car without this symptom.
I'm reviewing your question now, and will declare assist bearing in mind your respond ASAP. Rgds Greg. What irregularity codes complete you have. Does the engine govern afterward the MAF disconnected. with the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF associated it is lonesome measuring the air that is getting in the manner of the MAF, correspondingly if the intake manifold is sucking in expose the ventilate to fuel ratio will be extremely out and cause the engine to stal
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