I have a 2004 ES330 bearing in mind a hestitation problem. It is good from a full end but afterward I go in this area turns upon onto highway ramps, like I upset the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon similar to the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights tilt on? Is the battery adequately 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 so far? I ve cleaned the MAF sensor. Checked for links in the intake. behind I put my Turbo OBDII app on, everything seems good except that the TPS stays constant concerning 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I acknowledge the TPS is integrated later than the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know past I be next to 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 tiny more virtually the misfortune history. It currently has a master tech official idle freshen direct valve and tps installed. without touching 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 united it is on your own measuring the air that is getting in imitation of the MAF, so if the intake manifold is sucking in let breathe the ventilate to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. taking into account carb cleaner vaporizer vaporizer in the place of the hissing taking into account the engine organization and subsequent to you hear the engine stall or rev later there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.