I have a 2004 ES330 past a hestitation problem. It is fine from a full stop but bearing in mind I go with reference to turns on onto highway ramps, like I sadden 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 bearing in mind the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery adequately charged? With or without headlights on. Relatively new 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 fittingly far? I ve cleaned the MAF sensor. Checked for associates in the intake. like I put my Turbo OBDII app on, everything seems good except that the TPS stays constant a propos 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I assume the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know previously I attach you? No, I guess that is it.
Its as well as worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a ill pump will every result in insufficient fuel brute delivered to the engine. Might also be worth cleaning out the idle promptness manage motor / valve as these get clogged in the works in imitation of carbon and some brake cleaner washed through helps release things off.
subsequently I start the car, the engine surges in the works amongst 1200 and 2000 rpm back and forth. I misused the IAC and the TPS as soon as no modify in symptoms. I have noticed that several Lexus SC’s have this thesame issue. Prior to this I would have to familiarize the idle zeal screw to degrade the rpm and it would keep for a while. Now, the engine is for ever and a day surging to the narrowing where I cannot drive it for terrify of broken to the steer train. Any experienced solution?
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