I have a 2004 ES330 following a hestitation problem. It is fine from a full end but as soon as I go going on for turns upon onto highway ramps, taking into consideration I sadden 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 taking into consideration 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 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 consequently far? I ve cleaned the MAF sensor. Checked for associates in the intake. taking into account I put my Turbo OBDII app on, all seems fine except that the TPS stays constant re 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I take the TPS is integrated following the throttle controller/motor. Mechanic s Assistant: everything else you want the mechanic to know previously I attach you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests upon the expose flow meter and said it was good. in the same way as I unplug it and direct the motor, the car runs gruff and at 850ish. I can lonely guess that my new 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 run in the oscillate of rpm though? I think it single-handedly adjusts it concerning 1k..
This could be a large vacuum leak ,with the MAF related it is abandoned measuring the expose that is getting in the manner of the MAF, in view of that if the intake manifold is sucking in expose the freshen to fuel ratio will be definitely 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 can spray can in the place of the hissing subsequently the engine doling out and in imitation of you listen the engine stall or rev far ahead there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.