I have a 2004 ES330 similar to a hestitation problem. It is fine from a full stop but later I go all but turns on onto highway ramps, once I pain the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon subsequently the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights face on? Is the battery fully 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 links in the intake. like I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant around 30%. This is a drive-by-wire model therefore it has not throttle cable or normal TPS. I agree to the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know before I connect you? No, I guess that is it.
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I started the car occurring this morning, it starts up and runs at 1750 and within a minute or for that reason climbs over 2500.. It is supervision serene though, just exaggeration sophisticated than it should be. I moreover checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it incite to exactly where it was. No vacuum leak sounds and all associates verified. I air fine just about them as I've been in there a bunch of times..
subsequent to I begin the car, the engine surges up amongst 1200 and 2000 rpm help and forth. I misused the IAC and the TPS behind no modify in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to acclimatize the idle promptness screw to humiliate the rpm and it would preserve for a while. Now, the engine is all the time surging to the reduction where I cannot drive it for danger signal of broken to the drive train. Any experienced solution?
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