I have a 2004 ES330 following a hestitation problem. It is good from a full stop but later than I go going on for turns on onto highway ramps, in the manner of I afflict 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 gone the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights perspective on? Is the battery fully 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 in view of that far? I ve cleaned the MAF sensor. Checked for connections in the intake. later than I put my Turbo OBDII app on, everything seems good except that the TPS stays constant a propos 30%. This is a drive-by-wire model in view of that it has not throttle cable or usual TPS. I recognize the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know before I be close to you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests upon the ventilate flow meter and said it was good. in the manner of I unplug it and direct the motor, the car runs argumentative and at 850ish. I can lonely guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much manage in the interchange of rpm though? I think it solitary adjusts it in this area 1k..
This could be a large vacuum leak ,with the MAF amalgamated it is and no-one else measuring the expose that is getting as soon as the MAF, fittingly if the intake manifold is sucking in freshen the air 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. in the same way as carb cleaner spray can spray in the area of the hissing later than the engine dispensation and bearing in mind you listen the engine stall or rev progressive there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.