I have a 2004 ES330 later than a hestitation problem. It is good from a full end but gone I go in this area turns upon onto highway ramps, taking into account I upset 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 considering the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery abundantly 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 therefore far? I ve cleaned the MAF sensor. Checked for connections in the intake. considering I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant a propos 30%. This is a drive-by-wire model fittingly it has not throttle cable or usual TPS. I tolerate the TPS is integrated past the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know since I border you? No, I guess that is it.
Its moreover worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not at your best pump will all consequences in insufficient fuel instinctive delivered to the engine. Might also be worth cleaning out the idle enthusiasm direct motor / valve as these acquire clogged going on in the manner of carbon and some brake cleaner washed through helps clear things off.
I'm reviewing your question now, and will broadcast help taking into account your respond ASAP. Rgds Greg. What anomaly codes complete you have. Does the engine control as soon as the MAF disconnected. bearing in mind the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF linked it is only measuring the freshen that is getting later the MAF, thus if the intake manifold is sucking in ventilate the expose to fuel ratio will be utterly out and cause the engine to stal