I have a 2004 ES330 later a hestitation problem. It is good from a full end but past I go as regards turns on onto highway ramps, when I afflict 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 behind the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery adequately 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 hence far? I ve cleaned the MAF sensor. Checked for contacts in the intake. as soon as I put my Turbo OBDII app on, anything seems good except that the TPS stays constant on the order of 30%. This is a drive-by-wire model so it has not throttle cable or normal TPS. I endure the TPS is integrated past 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 happening this morning, it starts going on and runs at 1750 and within a minute or appropriately climbs more than 2500.. It is meting out serene though, just quirk forward-looking than it should be. I plus checked the throttle screw plate/return screw, with intent turned it out and nothing changed. put it put up to to exactly where it was. No vacuum leak sounds and all links verified. I air fine practically 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 happening 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 in the works and is warmed up? oftentimes in engine produce an effect many factors may cause the similar symptom(s)