I have a 2004 ES330 like a hestitation problem. It is fine from a full stop but when I go not far off from turns upon onto highway ramps, behind I pain 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 gone the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery fully charged? With or without headlights on. Relatively extra 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 therefore far? I ve cleaned the MAF sensor. Checked for connections in the intake. considering I put my Turbo OBDII app on, all seems fine except that the TPS stays constant vis--vis 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I understand the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know before I be next to 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 more or less the difficulty history. It currently has a master tech ascribed idle let breathe rule valve and tps installed. without distressing anything, the last (used) ecu and my original, would control in the car without this symptom.
bearing in mind I begin the car, the engine surges occurring in the midst of 1200 and 2000 rpm help and forth. I distorted the IAC and the TPS following no fine-tune in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to familiarize the idle promptness screw to degrade the rpm and it would preserve for a while. Now, the engine is constantly surging to the narrowing where I cannot steer it for panic of damage to the steer train. Any experienced solution?