97 Ford 4 6 Engine Diagram

I have a 2004 ES330 once a hestitation problem. It is fine from a full stop but behind I go approaching turns on onto highway ramps, behind I depress 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 account the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights perspective on? Is the battery sufficiently 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 thus far? I ve cleaned the MAF sensor. Checked for contacts in the intake. past I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant as regards 30%. This is a drive-by-wire model fittingly it has not throttle cable or usual TPS. I agree to the TPS is integrated subsequent to the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know before I link up you? No, I guess that is it.

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a little more practically the difficulty history. It currently has a master tech attributed idle air control valve and tps installed. without touching anything, the last (used) ecu and my original, would control in the car without this symptom.

I don't have any check engine lights unless I unplug the MAF sensor. like the MAF is plugged in subsequently the car will stall unless I put my foot on the accelerator. There is moreover an intermittent popping solid coming at idle.

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