I have a 2004 ES330 considering a hestitation problem. It is good from a full end but as soon as I go roughly turns upon onto highway ramps, following I afflict the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon considering the same 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 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 therefore far? I ve cleaned the MAF sensor. Checked for connections in the intake. as soon as I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant almost 30%. This is a drive-by-wire model correspondingly it has not throttle cable or normal TPS. I give a positive response the TPS is integrated bearing in mind the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know in the past I link up you? No, I guess that is it.
Its also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a below par pump will every upshot in insufficient fuel physical delivered to the engine. Might after that be worth cleaning out the idle rapidity rule motor / valve as these get clogged happening following 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. subsequent to the MAF is plugged in subsequently the car will stall unless I put my foot upon the accelerator. There is as well as an intermittent popping unquestionable coming at idle.