I have a 2004 ES330 past a hestitation problem. It is fine from a full end but behind I go on the order of turns upon onto highway ramps, later than I pain 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 with the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery fully 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 fittingly far? I ve cleaned the MAF sensor. Checked for links in the intake. in the same way as I put my Turbo OBDII app on, anything seems good except that the TPS stays constant on the order of 30%. This is a drive-by-wire model suitably it has not throttle cable or usual TPS. I receive the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know before I be next to you? No, I guess that is it.
Its furthermore worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all consequences in insufficient fuel physical delivered to the engine. Might afterward be worth cleaning out the idle promptness control motor / valve as these get clogged in the works afterward carbon and some brake cleaner washed through helps pardon things off.
I don't have any check engine lights unless I unplug the MAF sensor. afterward the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is after that an intermittent popping unassailable coming at idle.