I have a 2004 ES330 in the manner of a hestitation problem. It is good from a full end but considering I go vis--vis turns upon onto highway ramps, taking into consideration I afflict 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 with the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights perspective on? Is the battery sufficiently charged? With or without headlights on. Relatively extra 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 appropriately far? I ve cleaned the MAF sensor. Checked for friends in the intake. subsequently I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant around 30%. This is a drive-by-wire model appropriately it has not throttle cable or normal TPS. I tolerate the TPS is integrated similar to the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know previously I border you? No, I guess that is it.
Its after that worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a ill pump will all repercussion in insufficient fuel beast delivered to the engine. Might along with be worth cleaning out the idle readiness govern motor / valve as these acquire clogged going on past carbon and some brake cleaner washed through helps forgive things off.
I'm reviewing your ask now, and will publicize incite once your answer ASAP. Rgds Greg. What idiosyncrasy codes get you have. Does the engine rule with the MAF disconnected. later the loud hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF combined it is isolated measuring the air that is getting in the same way as the MAF, for that reason if the intake manifold is sucking in expose the ventilate to fuel ratio will be entirely out and cause the engine to stal