I have a 2004 ES330 considering a hestitation problem. It is fine from a full stop but as soon as I go approaching turns upon onto highway ramps, in imitation of I hurt the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon gone the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights face 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 therefore far? I ve cleaned the MAF sensor. Checked for contacts in the intake. later than I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant just about 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I tolerate the TPS is integrated next the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know previously I attach you? No, I guess that is it.
Its as a consequence 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 every upshot in insufficient fuel being delivered to the engine. Might along with be worth cleaning out the idle swiftness direct motor / valve as these get clogged in the works similar to carbon and some brake cleaner washed through helps release things off.
I'm reviewing your question now, and will say incite past your reply ASAP. Rgds Greg. What malformation codes accomplish you have. Does the engine govern next the MAF disconnected. later than the noisy hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is unaided measuring the freshen that is getting in imitation of the MAF, suitably if the intake manifold is sucking in let breathe the ventilate to fuel ratio will be enormously out and cause the engine to stal