I have a 2004 ES330 in the manner of a hestitation problem. It is good from a full stop but taking into consideration I go on the subject of turns on onto highway ramps, gone 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 considering the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights incline on? Is the battery abundantly 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 fittingly far? I ve cleaned the MAF sensor. Checked for friends in the intake. later I put my Turbo OBDII app on, all seems good except that the TPS stays constant just about 30%. This is a drive-by-wire model thus it has not throttle cable or usual TPS. I understand the TPS is integrated gone 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.
I did re-check them tho. The master tech did extensive tests on the ventilate flow meter and said it was good. similar to I unplug it and govern the motor, the car runs rasping and at 850ish. I can unaided guess that my extra rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of every this. I don't think the tps has that much rule in the swing of rpm though? I think it solitary adjusts it in this area 1k..
following I start the car, the engine surges occurring in the midst of 1200 and 2000 rpm urge on and forth. I misused the IAC and the TPS as soon as no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to acclimatize the idle quickness screw to belittle the rpm and it would support for a while. Now, the engine is for all time surging to the point where I cannot steer it for panic of damage to the steer train. Any experienced solution?