I have a 2004 ES330 behind a hestitation problem. It is fine from a full stop but like I go vis--vis turns upon onto highway ramps, with I sadden the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon subsequent to the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights position 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 in view of that far? I ve cleaned the MAF sensor. Checked for associates in the intake. taking into account I put my Turbo OBDII app on, all seems good except that the TPS stays constant nearly 30%. This is a drive-by-wire model correspondingly it has not throttle cable or normal TPS. I give a positive response the TPS is integrated next the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know since I be close to you? No, I guess that is it.
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I did re-check them tho. The master tech did extensive tests upon the expose flow meter and said it was good. once I unplug it and direct the motor, the car runs sharp and at 850ish. I can by yourself guess that my extra rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much run in the exchange of rpm though? I think it only adjusts it on 1k..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you going on 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 play a role many factors may cause the same symptom(s)
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