I have a 2004 ES330 subsequently a hestitation problem. It is good from a full end but in imitation of I go going on for turns upon onto highway ramps, later 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 as soon as the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery sufficiently 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 links in the intake. past 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 as a result it has not throttle cable or usual TPS. I admit the TPS is integrated bearing in mind the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know previously I be next to you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests upon the air flow meter and said it was good. afterward I unplug it and manage the motor, the car runs prickly and at 850ish. I can unaided guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much run in the swap of rpm though? I think it lonely adjusts it all but 1k..
This could be a large vacuum leak ,with the MAF linked it is lonely measuring the air that is getting subsequently the MAF, in view of that if the intake manifold is sucking in air 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. bearing in mind carb cleaner spray vaporizer in the area of the hissing behind the engine direction and next you listen the engine stall or rev cutting edge there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.