I have a 2004 ES330 gone a hestitation problem. It is fine from a full stop but once I go a propos turns on onto highway ramps, similar to I upset 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 same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery adequately 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 consequently far? I ve cleaned the MAF sensor. Checked for connections in the intake. next I put my Turbo OBDII app on, anything seems good except that the TPS stays constant in the region of 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I acknowledge the TPS is integrated taking into account the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know back 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 approximately the trouble history. It currently has a master tech attributed idle air direct valve and tps installed. without moving anything, the last (used) ecu and my original, would manage in the car without this symptom.
in the manner of I begin the car, the engine surges in the works amongst 1200 and 2000 rpm urge on and forth. I distorted the IAC and the TPS once no bend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to get used to the idle promptness screw to humiliate the rpm and it would preserve for a while. Now, the engine is for all time surging to the point where I cannot steer it for agitation of broken to the steer train. Any experienced solution?