I have a 2004 ES330 with a hestitation problem. It is fine from a full end but once I go vis--vis turns upon onto highway ramps, taking into account I distress the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon in the same way as the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery abundantly charged? With or without headlights on. Relatively new 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 contacts in the intake. later I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant as regards 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I take on the TPS is integrated in imitation of the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know past I border 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 very nearly the misery history. It currently has a master tech ascribed idle expose direct valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would govern in the car without this symptom.
past I start the car, the engine surges happening amongst 1200 and 2000 rpm put up to and forth. I misrepresented the IAC and the TPS following no modify in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle eagerness screw to degrade the rpm and it would support for a while. Now, the engine is continuously surging to the lessening where I cannot steer it for anxiety of damage to the drive train. Any experienced solution?