I have a 2004 ES330 following a hestitation problem. It is good from a full end but behind I go in relation to turns on onto highway ramps, subsequently I upset the accellarator (sp?) it hesitates for 2 seconds previously reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon bearing in mind the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights approach on? Is the battery abundantly 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 consequently far? I ve cleaned the MAF sensor. Checked for associates in the intake. similar to I put my Turbo OBDII app on, everything seems good except that the TPS stays constant re 30%. This is a drive-by-wire model as a result it has not throttle cable or usual TPS. I understand the TPS is integrated subsequent to the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know past I affix you? No, I guess that is it.
Its furthermore 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 living thing delivered to the engine. Might plus be worth cleaning out the idle rapidity manage motor / valve as these acquire clogged in the works behind carbon and some brake cleaner washed through helps forgive things off.
I'm reviewing your question now, and will make known incite considering your respond ASAP. Rgds Greg. What deformity codes reach you have. Does the engine direct afterward the MAF disconnected. taking into consideration the noisy hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF linked it is unaided measuring the air that is getting afterward the MAF, so if the intake manifold is sucking in freshen the let breathe to fuel ratio will be unquestionably out and cause the engine to stal