I have a 2004 ES330 following a hestitation problem. It is good from a full stop but once I go on the subject of turns on onto highway ramps, once I upset the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon afterward the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery thoroughly charged? With or without headlights on. Relatively further 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 so far? I ve cleaned the MAF sensor. Checked for connections in the intake. once I put my Turbo OBDII app on, anything seems good except that the TPS stays constant not far off from 30%. This is a drive-by-wire model so it has not throttle cable or normal TPS. I put up with the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know since I attach you? No, I guess that is it.
Might along with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a quick malfunction locate if you unplug the meter and run the engine without it. if the engine condition is the similar next chances are the meter or the attachment to it is faulty. Its as well as worth cleaning the MAF sensor wires, as they can acquire coated taking into consideration dirt higher than epoch which subsequently offsets the reading. Use some gate cleaner or brake cleaner to spray can onto the wires to separate the dirt upon no account be adjacent to the wires considering all as they are extremely fragile
This could be a large vacuum leak ,with the MAF combined it is unaccompanied measuring the air that is getting like the MAF, consequently if the intake manifold is sucking in expose the expose to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later carb cleaner spray can vaporizer in the place of the hissing gone the engine giving out and taking into consideration you hear the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
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