I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full end but subsequent to I go on the subject of turns on onto highway ramps, taking into account I distress the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon bearing in mind the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery thoroughly charged? With or without headlights on. Relatively other 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 so far? I ve cleaned the MAF sensor. Checked for links in the intake. afterward I put my Turbo OBDII app on, anything seems good except that the TPS stays constant around 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I acknowledge the TPS is integrated next the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know in the past I attach you? No, I guess that is it.
Might along with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a fast malfunction find if you unplug the meter and manage the engine without it. if the engine condition is the same then chances are the meter or the association to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can get coated next dirt over grow old which next offsets the reading. Use some get into cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt on no account be adjacent to the wires later whatever as they are entirely fragile
taking into consideration I begin the car, the engine surges in the works between 1200 and 2000 rpm support and forth. I changed the IAC and the TPS gone no bend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adjust the idle promptness screw to belittle the rpm and it would maintain for a while. Now, the engine is each time surging to the point where I cannot drive it for alarm bell of broken to the drive train. Any experienced solution?