I have a 2004 ES330 like a hestitation problem. It is fine from a full stop but in imitation of I go re turns on onto highway ramps, later I hurt 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 in imitation of the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights approach 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 for that reason far? I ve cleaned the MAF sensor. Checked for friends in the intake. in the same way as I put my Turbo OBDII app on, anything seems good except that the TPS stays constant on 30%. This is a drive-by-wire model consequently it has not throttle cable or normal TPS. I give a positive response the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know past I attach 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 little more more or less the trouble history. It currently has a master tech certified idle freshen govern valve and tps installed. without upsetting anything, the last (used) ecu and my original, would rule in the car without this symptom.
This could be a large vacuum leak ,with the MAF linked it is solitary measuring the freshen that is getting later than the MAF, so if the intake manifold is sucking in air the ventilate to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in the same way as carb cleaner vaporizer vaporizer in the place of the hissing subsequently the engine supervision and behind you hear the engine stall or rev forward-looking there is the leak ,could be a bad vacuum hose bad gasket on the manifold.