I have a 2004 ES330 when a hestitation problem. It is fine from a full end but taking into account I go approximately turns on onto highway ramps, following 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 bearing in mind the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights viewpoint on? Is the battery sufficiently 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 suitably far? I ve cleaned the MAF sensor. Checked for associates in the intake. as soon as I put my Turbo OBDII app on, everything seems good except that the TPS stays constant roughly 30%. This is a drive-by-wire model appropriately it has not throttle cable or normal TPS. I understand the TPS is integrated later the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know since 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 very nearly the suffering history. It currently has a master tech recognized idle ventilate rule valve and tps installed. without distressing anything, the last (used) ecu and my original, would manage in the car without this symptom.
This could be a large vacuum leak ,with the MAF combined it is lonely measuring the freshen that is getting behind the MAF, so if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be extremely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. like carb cleaner spray can spray in the place of the hissing taking into consideration the engine giving out and in the same way as you hear the engine stall or rev sophisticated there is the leak ,could be a bad vacuum hose bad gasket on the manifold.