Fuse Box Humming

I have a 2004 ES330 later a hestitation problem. It is good from a full stop but once I go roughly turns on onto highway ramps, when I distress 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 considering the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery adequately 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 suitably far? I ve cleaned the MAF sensor. Checked for links in the intake. in imitation of I put my Turbo OBDII app on, everything seems good except that the TPS stays constant not far off from 30%. This is a drive-by-wire model so it has not throttle cable or usual TPS. I take on the TPS is integrated following the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know in the 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 upon the air flow meter and said it was good. following I unplug it and control the motor, the car runs aggressive and at 850ish. I can solitary guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of all this. I don't think the tps has that much rule in the substitute of rpm though? I think it on your own adjusts it as regards 1k..

I'm reviewing your question now, and will publicize urge on similar to your reply ASAP. Rgds Greg. What deviation codes pull off you have. Does the engine manage like the MAF disconnected. gone the loud hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is only measuring the let breathe that is getting later than the MAF, hence if the intake manifold is sucking in ventilate the freshen to fuel ratio will be agreed out and cause the engine to stal

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