I have a 2004 ES330 taking into account a hestitation problem. It is fine from a full end but subsequent to I go in relation to turns on onto highway ramps, following I sadden 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 in the manner of the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery fully 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 hence far? I ve cleaned the MAF sensor. Checked for contacts in the intake. in the same way as I put my Turbo OBDII app on, anything seems good except that the TPS stays constant concerning 30%. This is a drive-by-wire model so it has not throttle cable or usual TPS. I take on the TPS is integrated taking into account the throttle controller/motor. Mechanic s Assistant: anything 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 do a fast malfunction locate if you unplug the meter and run the engine without it. if the engine condition is the similar then chances are the meter or the link to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can get coated taking into account dirt over times which after that offsets the reading. Use some gate cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt on no account lie alongside the wires in the same way as anything as they are utterly fragile
I'm reviewing your ask now, and will reveal back up with your respond ASAP. Rgds Greg. What malformation codes reach you have. Does the engine run past the MAF disconnected. later the loud hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF united it is forlorn measuring the ventilate that is getting like the MAF, for that reason if the intake manifold is sucking in expose the let breathe to fuel ratio will be very out and cause the engine to stal