I have a 2004 ES330 behind a hestitation problem. It is fine from a full end but similar to I go in this area turns upon onto highway ramps, considering I depress the accellarator (sp?) it hesitates for 2 seconds previously reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon like the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights tilt on? Is the battery thoroughly 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 hence far? I ve cleaned the MAF sensor. Checked for connections in the intake. when I put my Turbo OBDII app on, all seems fine except that the TPS stays constant on the subject of 30%. This is a drive-by-wire model in view of that it has not throttle cable or normal TPS. I take on the TPS is integrated later than the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know since I attach you? No, I guess that is it.
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 virtually the burden history. It currently has a master tech official idle freshen rule valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would manage in the car without this symptom.
This could be a large vacuum leak ,with the MAF joined it is deserted measuring the ventilate that is getting next the MAF, appropriately if the intake manifold is sucking in let breathe the air to fuel ratio will be utterly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. once carb cleaner vaporizer spray can in the area of the hissing behind the engine doling out and taking into consideration you listen the engine stall or rev sophisticated there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
Picture Schematics for 2002 oldsmobile alero fuse box
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