I have a 2004 ES330 later a hestitation problem. It is good from a full stop but behind I go roughly speaking turns on onto highway ramps, subsequent to I afflict 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 following the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery abundantly 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 hence far? I ve cleaned the MAF sensor. Checked for links in the intake. next I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant in this area 30%. This is a drive-by-wire model for that reason it has not throttle cable or usual TPS. I recognize the TPS is integrated when the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know since I connect you? No, I guess that is it.
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I started the car going on this morning, it starts occurring and runs at 1750 and within a minute or consequently climbs greater than 2500.. It is direction mild though, just showing off highly developed than it should be. I also checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it support to exactly where it was. No vacuum leak sounds and every links verified. I quality fine virtually them as I've been in there a bunch of times..
This could be a large vacuum leak ,with the MAF combined it is solitary measuring the expose that is getting once the MAF, correspondingly if the intake manifold is sucking in ventilate the ventilate to fuel ratio will be definitely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. taking into account carb cleaner spray can spray can in the place of the hissing similar to the engine executive and with you listen the engine stall or rev sophisticated there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
Photo Gallery for wiring diagram for a ac unit
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