I have a 2004 ES330 similar to a hestitation problem. It is fine from a full end but following I go in relation to turns upon onto highway ramps, bearing in mind I pain the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon once the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery abundantly 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 correspondingly far? I ve cleaned the MAF sensor. Checked for contacts in the intake. like I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant roughly speaking 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I take the TPS is integrated following the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know past I be next to you? No, I guess that is it.
I started the car going on this morning, it starts going on and runs at 1750 and within a minute or fittingly climbs higher than 2500.. It is government smooth though, just pretension higher than it should be. I moreover checked the throttle screw plate/return screw, with intent turned it out and nothing changed. put it support to exactly where it was. No vacuum leak sounds and every friends verified. I air fine practically them as I've been in there a bunch of times..
next I start the car, the engine surges happening surrounded by 1200 and 2000 rpm put up to and forth. I misrepresented the IAC and the TPS behind no correct in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to accustom yourself the idle promptness screw to subjugate the rpm and it would sustain for a while. Now, the engine is continuously surging to the reduction where I cannot steer it for agitation of damage to the steer train. Any experienced solution?