I have a 2004 ES330 behind a hestitation problem. It is fine from a full end but with I go around turns upon onto highway ramps, like I pain 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 taking into account the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery sufficiently 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 fittingly far? I ve cleaned the MAF sensor. Checked for links in the intake. once I put my Turbo OBDII app on, anything seems good except that the TPS stays constant on 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I put up with the TPS is integrated with the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know past I be next to you? No, I guess that is it.
Might with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast malformation locate if you unplug the meter and rule the engine without it. if the engine condition is the same later chances are the meter or the relationship to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can get coated like dirt higher than epoch which next offsets the reading. Use some read cleaner or brake cleaner to spray onto the wires to remove the dirt on no account touch the wires following all as they are certainly fragile
I don't have any check engine lights unless I unplug the MAF sensor. past the MAF is plugged in later the car will stall unless I put my foot upon the accelerator. There is then an intermittent popping hermetically sealed coming at idle.