I have a 2004 ES330 later a hestitation problem. It is fine from a full stop but as soon as I go concerning turns upon onto highway ramps, subsequent to I hurt the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon taking into consideration 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 supplementary 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 appropriately far? I ve cleaned the MAF sensor. Checked for contacts in the intake. similar to I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant nearly 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I acknowledge the TPS is integrated once the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know past I border you? No, I guess that is it.
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I did re-check them tho. The master tech did extensive tests on the expose flow meter and said it was good. later than I unplug it and run the motor, the car runs sharp and at 850ish. I can on your own guess that my further rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much direct in the vary of rpm though? I think it solitary adjusts it going on for 1k..
This could be a large vacuum leak ,with the MAF combined it is unaided measuring the freshen that is getting considering the MAF, hence if the intake manifold is sucking in expose the ventilate to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. considering carb cleaner spray can spray in the area of the hissing considering the engine organization and taking into consideration you hear the engine stall or rev progressive there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
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