I have a 2004 ES330 in the same way as a hestitation problem. It is good from a full stop but taking into account I go more or less turns upon onto highway ramps, in imitation of I distress the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon later than the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery thoroughly charged? With or without headlights on. Relatively supplementary 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. taking into account I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant as regards 30%. This is a drive-by-wire model fittingly it has not throttle cable or usual TPS. I endure the TPS is integrated in the same way as the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know back 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 poorly pump will all consequences in insufficient fuel mammal delivered to the engine. Might plus be worth cleaning out the idle promptness direct motor / valve as these acquire clogged taking place in the manner of carbon and some brake cleaner washed through helps pardon things off.
Hello the TPS does have an effect upon switching the car into idle mode consequently I'd suggest to make definite the throttle dish is 100% closed and not slightly stuck next carbon. and subsequently become accustomed the TPS therefore that the IDL stick is continuous to the E2 fix next the throttle is closed, and log on circuit later than the throttle is just cracked. Don't badly affect roughly any voltages, the IDL read is the essentially important one.