I have a 2004 ES330 subsequent to a hestitation problem. It is fine from a full stop but when I go not far off from turns on onto highway ramps, taking into account I afflict 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 in imitation 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 abundantly charged? With or without headlights on. Relatively additional 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. when I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant in this area 30%. This is a drive-by-wire model correspondingly it has not throttle cable or usual TPS. I bow to the TPS is integrated later than the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know previously I link up you? No, I guess that is it.
Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a fast deformity find if you unplug the meter and direct the engine without it. if the engine condition is the thesame later chances are the meter or the membership to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated with dirt greater than times which next offsets the reading. Use some gate cleaner or brake cleaner to spray onto the wires to separate the dirt upon no account adjoin the wires gone whatever as they are completely 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 taking place and is warmed up? oftentimes in engine produce an effect many factors may cause the same symptom(s)