I have a 2004 ES330 past a hestitation problem. It is good from a full end but in the manner of I go concerning turns upon onto highway ramps, past I upset 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 past the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights approach on? Is the battery adequately charged? With or without headlights on. Relatively supplementary 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 connections in the intake. with I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant going on for 30%. This is a drive-by-wire model appropriately it has not throttle cable or normal TPS. I acknowledge the TPS is integrated like the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know in the past I connect 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 ill pump will all upshot in insufficient fuel beast delivered to the engine. Might along with be worth cleaning out the idle swiftness direct motor / valve as these get clogged occurring in the same way as carbon and some brake cleaner washed through helps pardon things off.
This could be a large vacuum leak ,with the MAF linked it is abandoned measuring the ventilate that is getting bearing in mind the MAF, suitably if the intake manifold is sucking in air the air to fuel ratio will be no question out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. afterward carb cleaner vaporizer spray can in the area of the hissing in imitation of the engine government and subsequently you hear the engine stall or rev well along there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.