I have a 2004 ES330 subsequent to a hestitation problem. It is fine from a full stop but with I go regarding turns upon onto highway ramps, afterward I sadden 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 start and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery thoroughly charged? With or without headlights on. Relatively extra 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 correspondingly far? I ve cleaned the MAF sensor. Checked for contacts in the intake. similar to I put my Turbo OBDII app on, anything seems good except that the TPS stays constant something like 30%. This is a drive-by-wire model so it has not throttle cable or usual TPS. I consent the TPS is integrated afterward the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know before I attach you? No, I guess that is it.
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Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a fast aberration find if you unplug the meter and manage the engine without it. if the engine condition is the same later chances are the meter or the attachment to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can acquire coated in the manner of dirt higher than grow old which next offsets the reading. Use some gate cleaner or brake cleaner to spray onto the wires to remove the dirt upon no account touch the wires in imitation of everything as they are extremely fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you in the works to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms up and is warmed up? oftentimes in engine take action many factors may cause the thesame symptom(s)
Photo Schematics for lt1 tps wiring diagram
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