1990 Bronco 2 Fuel Pump Wiring Diagram

I have a 2004 ES330 in imitation of a hestitation problem. It is good from a full end but next I go regarding turns on onto highway ramps, subsequently I pain 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 as soon as the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery fully charged? With or without headlights on. Relatively new 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 associates in the intake. following I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant on 30%. This is a drive-by-wire model consequently it has not throttle cable or normal TPS. I undertake the TPS is integrated when the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know past I border 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 tiny more more or less the misery history. It currently has a master tech qualified idle freshen govern valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would control in the car without this symptom.

This could be a large vacuum leak ,with the MAF associated it is abandoned measuring the freshen that is getting next the MAF, for that reason if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be certainly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. with carb cleaner spray vaporizer in the area of the hissing gone the engine processing and subsequent to you hear the engine stall or rev forward-thinking there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.

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