I have a 2004 ES330 as soon as a hestitation problem. It is good from a full end but behind I go roughly turns upon onto highway ramps, like 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 later the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery fully charged? With or without headlights on. Relatively supplementary 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 in view of that far? I ve cleaned the MAF sensor. Checked for friends in the intake. with I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant in relation to 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I agree to the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know since I connect 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 little more not quite the burden history. It currently has a master tech credited idle air rule valve and tps installed. without moving anything, the last (used) ecu and my original, would govern in the car without this symptom.
in the manner of I start the car, the engine surges in the works between 1200 and 2000 rpm incite and forth. I tainted the IAC and the TPS like no change in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to get used to the idle zeal screw to belittle the rpm and it would hold for a while. Now, the engine is every time surging to the dwindling where I cannot drive it for panic of broken to the drive train. Any experienced solution?