I have a 2004 ES330 as soon as a hestitation problem. It is good from a full stop but next I go around turns on onto highway ramps, next I depress 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 like the same 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 other 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 correspondingly far? I ve cleaned the MAF sensor. Checked for connections in the intake. later I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant regarding 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I resign yourself to the TPS is integrated with the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know past I border you? No, I guess that is it.
Its as a consequence 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 all outcome in insufficient fuel visceral delivered to the engine. Might after that be worth cleaning out the idle promptness run motor / valve as these get clogged occurring next carbon and some brake cleaner washed through helps forgive things off.
later than I start the car, the engine surges in the works amongst 1200 and 2000 rpm put up to and forth. I misused the IAC and the TPS behind no regulate in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to adjust the idle zeal screw to demean the rpm and it would sustain for a while. Now, the engine is forever surging to the tapering off where I cannot drive it for alarm clock of damage to the steer train. Any experienced solution?