I have a 2004 ES330 subsequently a hestitation problem. It is good from a full end but afterward I go around turns on onto highway ramps, like I depress the accellarator (sp?) it hesitates for 2 seconds since reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon bearing in mind the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights outlook on? Is the battery thoroughly 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 as a result far? I ve cleaned the MAF sensor. Checked for friends in the intake. behind I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant on 30%. This is a drive-by-wire model for that reason it has not throttle cable or normal TPS. I believe the TPS is integrated considering the throttle controller/motor. Mechanic s Assistant: everything else you desire the mechanic to know since I affix 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 imitation of I unplug it and run the motor, the car runs aggressive and at 850ish. I can by yourself guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of every this. I don't think the tps has that much run in the alternative of rpm though? I think it by yourself adjusts it in the region of 1k..
This could be a large vacuum leak ,with the MAF connected it is only measuring the air that is getting later than the MAF, fittingly if the intake manifold is sucking in expose the ventilate to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. behind carb cleaner spray spray in the place of the hissing in the manner of the engine government and later you listen the engine stall or rev later there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.