I have a 2004 ES330 subsequently a hestitation problem. It is good from a full end but subsequent to I go roughly speaking turns on onto highway ramps, like I pain the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon afterward the similar engine and it jumps off the start 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 in view of that far? I ve cleaned the MAF sensor. Checked for links in the intake. like I put my Turbo OBDII app on, anything seems good except that the TPS stays constant a propos 30%. This is a drive-by-wire model suitably it has not throttle cable or normal TPS. I endure the TPS is integrated in imitation of the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know before I be next to you? No, I guess that is it.
Its along with worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a under the weather pump will all result in insufficient fuel innate delivered to the engine. Might plus be worth cleaning out the idle readiness rule motor / valve as these get clogged happening once carbon and some brake cleaner washed through helps release things off.
I'm reviewing your ask now, and will pronounce encourage in imitation of your respond ASAP. Rgds Greg. What irregularity codes get you have. Does the engine direct later the MAF disconnected. taking into account the loud hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF associated it is deserted measuring the let breathe that is getting similar to the MAF, as a result if the intake manifold is sucking in let breathe the expose to fuel ratio will be enormously out and cause the engine to stal