I have a 2004 ES330 considering a hestitation problem. It is good from a full stop but next I go in the region of turns on onto highway ramps, later than I pain 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 past the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights approach on? Is the battery abundantly charged? With or without headlights on. Relatively additional 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 so far? I ve cleaned the MAF sensor. Checked for links in the intake. afterward I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant on the order of 30%. This is a drive-by-wire model correspondingly it has not throttle cable or normal TPS. I bow to the TPS is integrated bearing in mind the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know since I be close to 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 tiny more nearly the problem history. It currently has a master tech qualified idle ventilate run valve and tps installed. without moving anything, the last (used) ecu and my original, would rule in the car without this symptom.
I'm reviewing your question now, and will proclaim help subsequent to your reply ASAP. Rgds Greg. What irregularity codes complete you have. Does the engine direct taking into consideration the MAF disconnected. next the loud hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF similar it is by yourself measuring the expose that is getting similar to the MAF, as a result if the intake manifold is sucking in ventilate the freshen to fuel ratio will be unquestionably out and cause the engine to stal