I have a 2004 ES330 later a hestitation problem. It is good from a full stop but past I go roughly speaking turns upon onto highway ramps, following 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 turn 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 consequently far? I ve cleaned the MAF sensor. Checked for friends in the intake. as soon as I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant almost 30%. This is a drive-by-wire model in view of that it has not throttle cable or usual TPS. I recognize the TPS is integrated taking into account the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know since I connect you? No, I guess that is it.
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Might as well as be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast malfunction locate if you unplug the meter and manage the engine without it. if the engine condition is the thesame later chances are the meter or the attachment to it is faulty. Its furthermore worth cleaning the MAF sensor wires, as they can acquire coated gone dirt higher than time which next offsets the reading. Use some right to use cleaner or brake cleaner to spray onto the wires to separate the dirt on no account touch the wires later all as they are certainly fragile
This could be a large vacuum leak ,with the MAF amalgamated it is without help measuring the let breathe that is getting with the MAF, correspondingly if the intake manifold is sucking in air the freshen to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. bearing in mind carb cleaner spray vaporizer in the area of the hissing in the same way as the engine presidency and gone you hear the engine stall or rev forward-thinking there is the leak ,could be a bad vacuum hose bad gasket on the manifold.
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