I have a 2004 ES330 taking into account a hestitation problem. It is good from a full stop but considering I go a propos turns on onto highway ramps, past I upset 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 in the same way as the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery adequately 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 for that reason far? I ve cleaned the MAF sensor. Checked for connections in the intake. in imitation of I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant around 30%. This is a drive-by-wire model hence it has not throttle cable or usual TPS. I bow to the TPS is integrated in the same way as the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know back I be close to 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 every upshot in insufficient fuel mammal delivered to the engine. Might in addition to be worth cleaning out the idle rapidity control motor / valve as these acquire clogged up later carbon and some brake cleaner washed through helps free things off.
in the same way as I start the car, the engine surges happening in the middle of 1200 and 2000 rpm support and forth. I tainted the IAC and the TPS in imitation of no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to get used to the idle eagerness screw to demean the rpm and it would retain for a while. Now, the engine is at all times surging to the dwindling where I cannot drive it for terrify of broken to the steer train. Any experienced solution?