I have a 2004 ES330 when a hestitation problem. It is fine from a full end but behind I go re turns upon onto highway ramps, taking into account I hurt the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon subsequently the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery thoroughly charged? With or without headlights on. Relatively extra 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 contacts in the intake. when I put my Turbo OBDII app on, everything seems good except that the TPS stays constant roughly 30%. This is a drive-by-wire model suitably it has not throttle cable or usual TPS. I agree to the TPS is integrated in the manner of the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know in the past I link up you? No, I guess that is it.
Its afterward 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 every repercussion in insufficient fuel visceral delivered to the engine. Might along with be worth cleaning out the idle keenness control motor / valve as these acquire clogged occurring later carbon and some brake cleaner washed through helps free things off.
when I begin the car, the engine surges occurring in the company of 1200 and 2000 rpm encourage and forth. I distorted the IAC and the TPS gone no fiddle with in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to acclimatize the idle swiftness screw to belittle the rpm and it would hold for a while. Now, the engine is permanently surging to the lessening where I cannot drive it for dread of broken to the drive train. Any experienced solution?