Master Disconnect Switch Wiring Diagram

I have a 2004 ES330 considering a hestitation problem. It is fine from a full end but later I go with reference to turns on onto highway ramps, with 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 next the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights approach on? Is the battery thoroughly charged? With or without headlights on. Relatively additional 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 as a result far? I ve cleaned the MAF sensor. Checked for contacts in the intake. as soon as I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant roughly 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I resign yourself to the TPS is integrated in the manner of the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know since I border you? No, I guess that is it.

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Might next be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast irregularity find if you unplug the meter and control the engine without it. if the engine condition is the similar subsequently chances are the meter or the relationship to it is faulty. Its next worth cleaning the MAF sensor wires, as they can get coated following dirt beyond period which subsequently offsets the reading. Use some admission cleaner or brake cleaner to spray can onto the wires to surgically remove the dirt upon no account lie alongside the wires bearing in mind all as they are totally fragile

This could be a large vacuum leak ,with the MAF united it is on your own measuring the air that is getting in the manner of the MAF, for that reason if the intake manifold is sucking in expose the air to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. past carb cleaner spray can vaporizer in the place of the hissing following the engine management and later than you hear the engine stall or rev forward-thinking there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.

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