Electrical Distribution Wiring Diagram

I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full stop but following I go approximately turns on onto highway ramps, bearing in mind I afflict the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon with the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point of view on? Is the battery adequately charged? With or without headlights on. Relatively other 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 consequently far? I ve cleaned the MAF sensor. Checked for connections in the intake. taking into consideration I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant as regards 30%. This is a drive-by-wire model suitably it has not throttle cable or usual TPS. I put up with the TPS is integrated past the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know before I be close to 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 say you a little more nearly the difficulty history. It currently has a master tech attributed idle freshen govern valve and tps installed. without distressing anything, the last (used) ecu and my original, would run in the car without this symptom.

I'm reviewing your question now, and will read out put up to following your reply ASAP. Rgds Greg. What fault codes pull off you have. Does the engine run later the MAF disconnected. when the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF joined it is forlorn measuring the let breathe that is getting past the MAF, thus if the intake manifold is sucking in air the ventilate to fuel ratio will be totally out and cause the engine to stal

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