I have a 2004 ES330 in the same way as a hestitation problem. It is fine from a full end but in imitation of I go on turns upon onto highway ramps, following I depress 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 later the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights viewpoint on? Is the battery abundantly charged? With or without headlights on. Relatively new 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 thus far? I ve cleaned the MAF sensor. Checked for connections in the intake. in the same way as I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant almost 30%. This is a drive-by-wire model as a result it has not throttle cable or normal TPS. I understand the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know in the past I affix you? No, I guess that is it.
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a fast idiosyncrasy locate if you unplug the meter and govern the engine without it. if the engine condition is the thesame next chances are the meter or the association to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated following dirt greater than times which after that offsets the reading. Use some door cleaner or brake cleaner to spray can onto the wires to surgically remove the dirt on no account be adjacent to the wires later than everything as they are definitely fragile
I don't have any check engine lights unless I unplug the MAF sensor. taking into account the MAF is plugged in then the car will stall unless I put my foot on the accelerator. There is as well as an intermittent popping unassailable coming at idle.