I have a 2004 ES330 taking into account a hestitation problem. It is fine from a full stop but subsequently I go something like turns upon onto highway ramps, gone I upset 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 thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery sufficiently 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 suitably far? I ve cleaned the MAF sensor. Checked for associates in the intake. bearing in mind I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant on the order of 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I understand the TPS is integrated past the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know back I connect you? No, I guess that is it.
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a fast anomaly find if you unplug the meter and run the engine without it. if the engine condition is the thesame next chances are the meter or the connection to it is faulty. Its in addition to worth cleaning the MAF sensor wires, as they can acquire coated considering dirt beyond period which next offsets the reading. Use some entre cleaner or brake cleaner to spray onto the wires to cut off the dirt upon no account be adjacent to the wires like whatever as they are extremely fragile
subsequently I begin the car, the engine surges going on amongst 1200 and 2000 rpm back and forth. I changed the IAC and the TPS in imitation of no fine-tune in symptoms. I have noticed that several Lexus SC’s have this similar issue. Prior to this I would have to become accustomed the idle keenness screw to lower the rpm and it would support for a while. Now, the engine is until the end of time surging to the point where I cannot steer it for apprehension of broken to the steer train. Any experienced solution?
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