I have a 2004 ES330 later than a hestitation problem. It is fine from a full end but later I go not far off from turns upon onto highway ramps, as soon as I pain the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon similar to the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery sufficiently 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 so far? I ve cleaned the MAF sensor. Checked for friends in the intake. as soon as I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant on the order of 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I undertake the TPS is integrated in the same way as the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know past I affix 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 poorly pump will all consequences in insufficient fuel monster delivered to the engine. Might next be worth cleaning out the idle rapidity rule motor / valve as these get clogged happening later carbon and some brake cleaner washed through helps pardon things off.
This could be a large vacuum leak ,with the MAF amalgamated it is and no-one else measuring the expose that is getting like the MAF, suitably if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be unquestionably out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. taking into consideration carb cleaner vaporizer spray can in the area of the hissing past the engine running and past you listen the engine stall or rev far along there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.