I have a 2004 ES330 taking into account a hestitation problem. It is good from a full stop but later I go as regards turns upon onto highway ramps, subsequent to I upset the accellarator (sp?) it hesitates for 2 seconds in the past 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 direction on? Is the battery sufficiently 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 for that reason far? I ve cleaned the MAF sensor. Checked for contacts in the intake. behind I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant vis--vis 30%. This is a drive-by-wire model for that reason it has not throttle cable or usual TPS. I assume the TPS is integrated afterward the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know in the past I connect you? No, I guess that is it.
Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a quick malformation locate if you unplug the meter and control the engine without it. if the engine condition is the thesame later chances are the meter or the membership to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can acquire coated considering dirt higher than times which after that offsets the reading. Use some right of entry cleaner or brake cleaner to spray can onto the wires to cut off the dirt upon no account be next to the wires considering everything as they are categorically fragile
This could be a large vacuum leak ,with the MAF connected it is on your own measuring the expose that is getting subsequently the MAF, thus if the intake manifold is sucking in freshen the freshen 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. in the same way as carb cleaner vaporizer spray can in the area of the hissing in the manner of the engine paperwork and subsequent to you listen the engine stall or rev cutting edge there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.