I have a 2004 ES330 considering a hestitation problem. It is good from a full stop but past I go going on for turns upon onto highway ramps, following I hurt 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 with the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights slope on? Is the battery fully 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 hence far? I ve cleaned the MAF sensor. Checked for associates in the intake. like I put my Turbo OBDII app on, all seems good except that the TPS stays constant just about 30%. This is a drive-by-wire model so it has not throttle cable or usual TPS. I acknowledge the TPS is integrated afterward the throttle controller/motor. Mechanic s Assistant: whatever else you desire the mechanic to know in the past I attach you? No, I guess that is it.
Its then worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not at your best pump will every outcome in insufficient fuel living thing delivered to the engine. Might as well as be worth cleaning out the idle readiness control motor / valve as these get clogged taking place behind carbon and some brake cleaner washed through helps release things off.
Hello the TPS does have an effect on switching the car into idle mode so I'd recommend to make determined the throttle plate is 100% closed and not slightly grounded taking into account carbon. and next adapt the TPS therefore that the IDL glue is continuous to the E2 fix with the throttle is closed, and gate circuit later than the throttle is just cracked. Don't distress approximately any voltages, the IDL admission is the really important one.