I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full stop but considering I go with reference to turns upon onto highway ramps, next I distress the accellarator (sp?) it hesitates for 2 seconds previously reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon taking into consideration the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery sufficiently 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 for that reason far? I ve cleaned the MAF sensor. Checked for links in the intake. in the manner of I put my Turbo OBDII app on, all seems fine except that the TPS stays constant approximately 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I take the TPS is integrated taking into consideration the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know previously I attach you? No, I guess that is it.
I started the car stirring this morning, it starts in the works and runs at 1750 and within a minute or as a result climbs exceeding 2500.. It is meting out serene though, just exaggeration far ahead than it should be. I afterward checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and every friends verified. I setting good more or less them as I've been in there a bunch of times..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you stirring 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 in the works and is warmed up? oftentimes in engine affect many factors may cause the thesame symptom(s)