I have a 2004 ES330 as soon as a hestitation problem. It is fine from a full stop but gone I go concerning turns upon onto highway ramps, taking into consideration I depress 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 like the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights approach on? Is the battery sufficiently charged? With or without headlights on. Relatively supplementary 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 correspondingly far? I ve cleaned the MAF sensor. Checked for links in the intake. subsequent to I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant regarding 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I bow to the TPS is integrated taking into account the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know before I affix you? No, I guess that is it.
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Might with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick fault locate if you unplug the meter and run the engine without it. if the engine condition is the similar after that chances are the meter or the link to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can acquire coated in imitation of dirt exceeding mature which then offsets the reading. Use some open cleaner or brake cleaner to spray can onto the wires to sever the dirt upon no account adjoin the wires similar to all as they are totally fragile
This could be a large vacuum leak ,with the MAF aligned it is isolated measuring the expose that is getting taking into account the MAF, hence if the intake manifold is sucking in air the freshen to fuel ratio will be no question out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. next carb cleaner spray can spray can in the place of the hissing in the manner of the engine government and like you hear the engine stall or rev well ahead there is the leak ,could be a bad vacuum hose bad gasket on the manifold.
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