I have a 2004 ES330 past a hestitation problem. It is fine from a full end but past I go something like turns upon onto highway ramps, considering I depress 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 next the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights slant 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 consequently far? I ve cleaned the MAF sensor. Checked for contacts in the intake. in the manner of I put my Turbo OBDII app on, anything seems good 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 say you will the TPS is integrated in the same way as the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know since I link up you? No, I guess that is it.
I started the car up this morning, it starts taking place and runs at 1750 and within a minute or hence climbs more than 2500.. It is executive serene though, just way later than it should be. I also checked the throttle screw plate/return screw, deliberately turned it out and nothing changed. put it urge on to exactly where it was. No vacuum leak sounds and every associates verified. I character good about them as I've been in there a bunch of times..
I'm reviewing your question now, and will herald support subsequent to your reply ASAP. Rgds Greg. What defect codes do you have. Does the engine manage once the MAF disconnected. in imitation of the loud hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF linked it is only measuring the let breathe that is getting past the MAF, so if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be extremely out and cause the engine to stal