I have a 2004 ES330 similar to a hestitation problem. It is good from a full stop but in the manner of I go just about turns upon onto highway ramps, when I hurt 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 the manner of the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights turn 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 for that reason far? I ve cleaned the MAF sensor. Checked for links in the intake. following I put my Turbo OBDII app on, all seems fine except that the TPS stays constant vis--vis 30%. This is a drive-by-wire model correspondingly it has not throttle cable or usual TPS. I believe the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know since I attach you? No, I guess that is it.
I bought it in July, drove it house from LA (to Utah), and the problems started suddenly after I got it home.Any additional back up you can manage to pay for is appreciated. I don't know what else to realize but undertake it back to the dealer. I know I've got the shop foreman working on it at the dealer, but I still character its pushed to the back up as its old and everyone loses in this situation.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you up to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms going on and is warmed up? oftentimes in engine put on an act many factors may cause the same symptom(s)