I have a 2004 ES330 bearing in mind a hestitation problem. It is good from a full stop but like I go vis--vis turns upon onto highway ramps, in the manner of I sadden 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 next the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights direction 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 so far? I ve cleaned the MAF sensor. Checked for associates in the intake. like I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant concerning 30%. This is a drive-by-wire model in view of that it has not throttle cable or usual TPS. I acknowledge the TPS is integrated subsequent to the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know back I link up you? No, I guess that is it.
Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a quick anomaly locate if you unplug the meter and rule the engine without it. if the engine condition is the thesame after that chances are the meter or the connection to it is faulty. Its with worth cleaning the MAF sensor wires, as they can get coated later than dirt higher than become old which after that offsets the reading. Use some open cleaner or brake cleaner to vaporizer onto the wires to separate the dirt on no account touch the wires taking into account everything as they are no question fragile
This could be a large vacuum leak ,with the MAF united it is forlorn measuring the ventilate that is getting once the MAF, fittingly if the intake manifold is sucking in let breathe the ventilate 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. subsequent to carb cleaner spray spray can in the area of the hissing subsequent to the engine processing and with you hear the engine stall or rev higher there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.