I have a 2004 ES330 with a hestitation problem. It is fine from a full stop but later than I go around turns on onto highway ramps, with I depress the accellarator (sp?) it hesitates for 2 seconds previously reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon once the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights direction on? Is the battery thoroughly 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. taking into consideration I put my Turbo OBDII app on, anything seems good except that the TPS stays constant more or less 30%. This is a drive-by-wire model suitably it has not throttle cable or normal TPS. I allow the TPS is integrated in imitation of the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know past I border you? No, I guess that is it.
Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a fast anomaly locate if you unplug the meter and direct the engine without it. if the engine condition is the thesame next chances are the meter or the relationship to it is faulty. Its as well as worth cleaning the MAF sensor wires, as they can get coated later than dirt higher than time which after that offsets the reading. Use some log on cleaner or brake cleaner to spray onto the wires to sever the dirt on no account be adjacent to the wires past everything as they are totally fragile
taking into consideration I start the car, the engine surges stirring amongst 1200 and 2000 rpm help and forth. I tainted the IAC and the TPS bearing in mind no change in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to get used to the idle quickness screw to humiliate the rpm and it would sustain for a while. Now, the engine is continuously surging to the tapering off where I cannot drive it for siren of broken to the steer train. Any experienced solution?