I have a 2004 ES330 in the same way as a hestitation problem. It is good from a full stop but with I go vis--vis turns on onto highway ramps, behind I distress the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon next the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery adequately charged? With or without headlights on. Relatively supplementary 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 as a result far? I ve cleaned the MAF sensor. Checked for connections in the intake. similar to 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 suitably it has not throttle cable or usual TPS. I bow to the TPS is integrated similar to the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know in the past I affix you? No, I guess that is it.
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a quick aberration locate if you unplug the meter and control the engine without it. if the engine condition is the similar next chances are the meter or the connection to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated behind dirt higher than grow old which later offsets the reading. Use some log on cleaner or brake cleaner to spray can onto the wires to remove the dirt on no account be adjacent to the wires later anything as they are no question fragile
I don't have any check engine lights unless I unplug the MAF sensor. subsequent to the MAF is plugged in later the car will stall unless I put my foot on the accelerator. There is plus an intermittent popping solid coming at idle.