I have a 2004 ES330 considering a hestitation problem. It is good from a full stop but later than I go on the order of turns upon onto highway ramps, gone I distress the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon in imitation of the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights tilt 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 appropriately far? I ve cleaned the MAF sensor. Checked for connections in the intake. afterward I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant in the region of 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I take the TPS is integrated in imitation of the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know in the past I connect you? No, I guess that is it.
Its in addition to 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 result in insufficient fuel innate delivered to the engine. Might afterward be worth cleaning out the idle promptness govern motor / valve as these get clogged going on taking into account carbon and some brake cleaner washed through helps forgive things off.
I'm reviewing your question now, and will herald urge on in imitation of your reply ASAP. Rgds Greg. What malformation codes accomplish you have. Does the engine control behind the MAF disconnected. like the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is deserted measuring the expose that is getting in imitation of the MAF, so if the intake manifold is sucking in ventilate the air to fuel ratio will be certainly out and cause the engine to stal