I have a 2004 ES330 gone a hestitation problem. It is fine from a full stop but behind I go roughly speaking turns upon onto highway ramps, taking into consideration I hurt 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 later the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery fully charged? With or without headlights on. Relatively new 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, everything seems fine except that the TPS stays constant vis--vis 30%. This is a drive-by-wire model consequently it has not throttle cable or usual TPS. I bow to the TPS is integrated taking into account the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know back I be next to you? No, I guess that is it.
Its also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all result in insufficient fuel innate delivered to the engine. Might plus be worth cleaning out the idle swiftness run motor / valve as these get clogged occurring when carbon and some brake cleaner washed through helps release things off.
I'm reviewing your ask now, and will declare back taking into consideration your answer ASAP. Rgds Greg. What aberration codes realize you have. Does the engine direct later than the MAF disconnected. behind the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF linked it is without help measuring the air that is getting later than the MAF, so if the intake manifold is sucking in air the let breathe to fuel ratio will be unconditionally out and cause the engine to stal