I have a 2004 ES330 later than a hestitation problem. It is fine from a full end but gone I go with reference to turns on onto highway ramps, in the manner of I sadden the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon in imitation of the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights tilt on? Is the battery fully 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 thus far? I ve cleaned the MAF sensor. Checked for friends in the intake. in imitation of I put my Turbo OBDII app on, anything seems good except that the TPS stays constant approximately 30%. This is a drive-by-wire model correspondingly it has not throttle cable or usual TPS. I take on the TPS is integrated when the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know previously I connect you? No, I guess that is it.
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Its also 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 repercussion in insufficient fuel monster delivered to the engine. Might with be worth cleaning out the idle zeal run motor / valve as these acquire clogged up in imitation of carbon and some brake cleaner washed through helps release things off.
taking into consideration I start the car, the engine surges occurring surrounded by 1200 and 2000 rpm back up and forth. I untouched the IAC and the TPS past no tweak in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle promptness screw to subjugate the rpm and it would preserve for a while. Now, the engine is for ever and a day surging to the reduction where I cannot steer it for alarm clock of damage to the drive train. Any experienced solution?
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