I have a 2004 ES330 in the manner of a hestitation problem. It is good from a full end but in imitation of I go re turns on onto highway ramps, next I sadden 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 similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights position on? Is the battery fully charged? With or without headlights on. Relatively supplementary 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 suitably far? I ve cleaned the MAF sensor. Checked for associates in the intake. later I put my Turbo OBDII app on, all seems good except that the TPS stays constant all but 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I acknowledge the TPS is integrated when the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know since I attach you? No, I guess that is it.
Its with worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a ill pump will all repercussion in insufficient fuel innate delivered to the engine. Might with be worth cleaning out the idle zeal manage motor / valve as these acquire clogged happening following carbon and some brake cleaner washed through helps pardon things off.
This could be a large vacuum leak ,with the MAF linked it is solitary measuring the expose that is getting as soon as the MAF, therefore if the intake manifold is sucking in ventilate the air to fuel ratio will be extremely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later than carb cleaner spray vaporizer in the area of the hissing later the engine processing and following you hear the engine stall or rev highly developed there is the leak ,could be a bad vacuum hose bad gasket on the manifold.