I have a 2004 ES330 like a hestitation problem. It is fine from a full end but following I go approaching turns upon onto highway ramps, when I depress the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon subsequently the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery abundantly 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 correspondingly far? I ve cleaned the MAF sensor. Checked for contacts in the intake. next 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 correspondingly it has not throttle cable or usual TPS. I understand the TPS is integrated next the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know before I border you? No, I guess that is it.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a little more practically the suffering history. It currently has a master tech recognized idle let breathe direct valve and tps installed. without upsetting anything, the last (used) ecu and my original, would run in the car without this symptom.
This could be a large vacuum leak ,with the MAF united it is and no-one else measuring the let breathe that is getting later than the MAF, correspondingly if the intake manifold is sucking in freshen the freshen to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in imitation of carb cleaner vaporizer spray can in the area of the hissing gone the engine organization and subsequent to you listen the engine stall or rev vanguard there is the leak ,could be a bad vacuum hose bad gasket on the manifold.