I have a 2004 ES330 in the same way as a hestitation problem. It is good from a full stop but taking into consideration I go on turns upon onto highway ramps, with I sadden 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 imitation of the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery sufficiently charged? With or without headlights on. Relatively further 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 as a result far? I ve cleaned the MAF sensor. Checked for links in the intake. bearing in mind I put my Turbo OBDII app on, all seems fine except that the TPS stays constant in relation to 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I believe the TPS is integrated like the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know before I be close to you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests upon the freshen flow meter and said it was good. like I unplug it and govern the motor, the car runs sharp and at 850ish. I can unaided guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of all this. I don't think the tps has that much rule in the every second of rpm though? I think it without help adjusts it re 1k..
later I start the car, the engine surges up surrounded by 1200 and 2000 rpm support and forth. I changed the IAC and the TPS considering no alter in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to become accustomed the idle eagerness screw to degrade the rpm and it would maintain for a while. Now, the engine is for ever and a day surging to the lessening where I cannot drive it for alarm clock of damage to the steer train. Any experienced solution?