I have a 2004 ES330 similar to a hestitation problem. It is fine from a full end but next I go nearly turns on onto highway ramps, considering 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 subsequent to the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant 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 hence far? I ve cleaned the MAF sensor. Checked for contacts in the intake. subsequently I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant on the order of 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I put up with the TPS is integrated like 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 in poor health pump will every upshot in insufficient fuel beast delivered to the engine. Might with be worth cleaning out the idle eagerness control motor / valve as these get clogged in the works following carbon and some brake cleaner washed through helps clear things off.
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