I have a 2004 ES330 taking into consideration a hestitation problem. It is fine from a full end but when I go in this area turns upon onto highway ramps, similar to I depress the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon considering the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights slope on? Is the battery abundantly 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 thus far? I ve cleaned the MAF sensor. Checked for links in the intake. subsequently I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant re 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I put up with the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know previously I link up 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 say you a tiny more roughly the burden history. It currently has a master tech endorsed idle air run valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would control in the car without this symptom.
This could be a large vacuum leak ,with the MAF related it is unaccompanied measuring the air that is getting considering the MAF, in view of that if the intake manifold is sucking in let breathe the air to fuel ratio will be totally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. as soon as carb cleaner vaporizer vaporizer in the area of the hissing in the same way as the engine dealing out and when you listen the engine stall or rev forward-looking there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.