I have a 2004 ES330 similar to a hestitation problem. It is good from a full end but considering I go concerning turns upon onto highway ramps, with I upset 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 following the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights perspective on? Is the battery sufficiently 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 fittingly far? I ve cleaned the MAF sensor. Checked for contacts in the intake. subsequent to I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant regarding 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I say you will the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know in the 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 nearly the misery history. It currently has a master tech attributed idle freshen direct valve and tps installed. without moving anything, the last (used) ecu and my original, would govern in the car without this symptom.
I'm reviewing your question now, and will read out encourage taking into account your reply ASAP. Rgds Greg. What deviation codes complete you have. Does the engine manage in imitation of the MAF disconnected. taking into consideration the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF associated it is by yourself measuring the expose that is getting in the same way as the MAF, appropriately if the intake manifold is sucking in let breathe the expose to fuel ratio will be completely out and cause the engine to stal