I have a 2004 ES330 following a hestitation problem. It is good from a full end but behind I go vis--vis turns on onto highway ramps, considering I pain 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 subsequently the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery adequately charged? With or without headlights on. Relatively other 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 associates in the intake. subsequently I put my Turbo OBDII app on, anything seems good except that the TPS stays constant approaching 30%. This is a drive-by-wire model fittingly it has not throttle cable or normal TPS. I undertake the TPS is integrated once the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know since I be close to 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 complete a quick deviation locate if you unplug the meter and control the engine without it. if the engine condition is the similar then chances are the meter or the association to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can get coated when dirt beyond times which then offsets the reading. Use some admission cleaner or brake cleaner to spray onto the wires to cut off the dirt upon no account be next to the wires bearing in mind everything as they are unconditionally fragile
This could be a large vacuum leak ,with the MAF associated it is lonely measuring the expose that is getting following the MAF, hence if the intake manifold is sucking in air the air to fuel ratio will be definitely 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 in the place of the hissing next the engine direction and subsequent to you listen the engine stall or rev progressive there is the leak ,could be a bad vacuum hose bad gasket on the manifold.