I have a 2004 ES330 as soon as a hestitation problem. It is good from a full stop but subsequently I go in the region of turns upon onto highway ramps, in imitation of 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 later than the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery adequately charged? With or without headlights on. Relatively further 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 contacts in the intake. following I put my Turbo OBDII app on, all seems fine except that the TPS stays constant on the subject of 30%. This is a drive-by-wire model so it has not throttle cable or usual TPS. I bow to the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know in the past I be next to you? No, I guess that is it.
Its after that worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not at your best pump will all repercussion in insufficient fuel subconscious delivered to the engine. Might with be worth cleaning out the idle rapidity manage motor / valve as these acquire clogged taking place later than carbon and some brake cleaner washed through helps free things off.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you in the works to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine ham it up many factors may cause the thesame symptom(s)