I have a 2004 ES330 like a hestitation problem. It is fine from a full end but past I go almost turns on onto highway ramps, gone I afflict 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 when the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery abundantly 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 in view of that far? I ve cleaned the MAF sensor. Checked for contacts in the intake. with I put my Turbo OBDII app on, all seems fine except that the TPS stays constant in the region of 30%. This is a drive-by-wire model consequently it has not throttle cable or usual TPS. I say you will the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know since I attach 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 in poor health pump will every consequences in insufficient fuel physical delivered to the engine. Might plus be worth cleaning out the idle promptness rule motor / valve as these acquire clogged up in imitation of carbon and some brake cleaner washed through helps forgive things off.
I don't have any check engine lights unless I unplug the MAF sensor. in the same way as the MAF is plugged in later the car will stall unless I put my foot on the accelerator. There is as well as an intermittent popping sound coming at idle.