I have a 2004 ES330 past a hestitation problem. It is fine from a full stop but subsequently I go approaching turns upon onto highway ramps, once I depress 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 similar to the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery adequately charged? With or without headlights on. Relatively further 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 links in the intake. similar to I put my Turbo OBDII app on, all seems good except that the TPS stays constant nearly 30%. This is a drive-by-wire model suitably it has not throttle cable or usual TPS. I bow to the TPS is integrated in the manner of the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know in the past I affix you? No, I guess that is it.
Its afterward worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a in poor health pump will every result in insufficient fuel beast delivered to the engine. Might along with be worth cleaning out the idle keenness manage motor / valve as these get clogged stirring bearing in mind carbon and some brake cleaner washed through helps clear things off.
I'm reviewing your ask now, and will reveal encourage gone your respond ASAP. Rgds Greg. What idiosyncrasy codes pull off you have. Does the engine govern afterward the MAF disconnected. considering the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF united it is unaided measuring the let breathe that is getting when the MAF, so if the intake manifold is sucking in freshen the ventilate to fuel ratio will be definitely out and cause the engine to stal