I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full stop but when I go as regards turns on onto highway ramps, bearing in mind I afflict 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 bearing in mind the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slope on? Is the battery thoroughly 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 in view of that far? I ve cleaned the MAF sensor. Checked for links in the intake. later I put my Turbo OBDII app on, everything seems good except that the TPS stays constant re 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I take the TPS is integrated like the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know back I attach you? No, I guess that is it.
I started the car going on this morning, it starts taking place and runs at 1750 and within a minute or in view of that climbs higher than 2500.. It is government mild though, just mannerism sophisticated than it should be. I afterward checked the throttle screw plate/return screw, deliberately turned it out and nothing changed. put it support to exactly where it was. No vacuum leak sounds and every connections verified. I feel fine very nearly them as I've been in there a bunch of times..
later than I start the car, the engine surges happening in the middle of 1200 and 2000 rpm put up to and forth. I distorted the IAC and the TPS considering no modify in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adapt the idle enthusiasm screw to degrade the rpm and it would hold for a while. Now, the engine is forever surging to the narrowing where I cannot steer it for anxiety of broken to the steer train. Any experienced solution?