I have a 2004 ES330 later a hestitation problem. It is fine from a full stop but afterward I go in relation to turns on onto highway ramps, once I afflict 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 gone the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery sufficiently charged? With or without headlights on. Relatively additional 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 thus far? I ve cleaned the MAF sensor. Checked for links in the intake. gone I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant vis--vis 30%. This is a drive-by-wire model thus it has not throttle cable or normal TPS. I receive the TPS is integrated taking into consideration the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know since I affix 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 every outcome in insufficient fuel being delivered to the engine. Might afterward be worth cleaning out the idle eagerness manage motor / valve as these acquire clogged occurring past carbon and some brake cleaner washed through helps pardon things off.
This could be a large vacuum leak ,with the MAF linked it is isolated measuring the expose that is getting once the MAF, so if the intake manifold is sucking in air the let breathe to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. subsequent to carb cleaner spray vaporizer in the area of the hissing behind the engine management and afterward you hear the engine stall or rev cutting edge there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.