I have a 2004 ES330 subsequently a hestitation problem. It is fine from a full end but subsequently I go on the subject of turns on onto highway ramps, following I upset 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 with the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights viewpoint on? Is the battery thoroughly charged? With or without headlights on. Relatively supplementary 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 associates in the intake. behind I put my Turbo OBDII app on, anything seems good except that the TPS stays constant going on for 30%. This is a drive-by-wire model consequently it has not throttle cable or normal TPS. I believe the TPS is integrated like the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know in the past I border you? No, I guess that is it.
I started the car in the works this morning, it starts up and runs at 1750 and within a minute or hence climbs more than 2500.. It is admin mild though, just showing off innovative than it should be. I as well as 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 every links verified. I feel fine roughly them as I've been in there a bunch of times..
once I begin the car, the engine surges in the works in the middle of 1200 and 2000 rpm urge on and forth. I distorted the IAC and the TPS taking into consideration no alter in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adjust the idle enthusiasm screw to demean the rpm and it would retain for a while. Now, the engine is constantly surging to the point where I cannot steer it for fear of damage to the steer train. Any experienced solution?