I have a 2004 ES330 in the manner of a hestitation problem. It is good from a full stop but as soon as I go going on for turns on onto highway ramps, next I pain the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon considering the similar engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights slant on? Is the battery sufficiently charged? With or without headlights on. Relatively further 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 as a result far? I ve cleaned the MAF sensor. Checked for friends in the intake. subsequently I put my Turbo OBDII app on, whatever seems fine except that the TPS stays constant with reference to 30%. This is a drive-by-wire model correspondingly it has not throttle cable or normal TPS. I allow the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know past I attach you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests on the expose flow meter and said it was good. as soon as I unplug it and run the motor, the car runs aggressive and at 850ish. I can only guess that my further rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of every this. I don't think the tps has that much govern in the alternative of rpm though? I think it forlorn adjusts it more or less 1k..
I'm reviewing your question now, and will proclaim assist gone your respond ASAP. Rgds Greg. What fault codes accomplish you have. Does the engine manage with the MAF disconnected. considering the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF linked it is isolated measuring the freshen that is getting next the MAF, thus if the intake manifold is sucking in freshen the air to fuel ratio will be unconditionally out and cause the engine to stal