I have a 2004 ES330 past a hestitation problem. It is good from a full end but like I go on the subject of turns on onto highway ramps, bearing in mind I afflict the accellarator (sp?) it hesitates for 2 seconds previously reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon taking into consideration the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights aim on? Is the battery abundantly 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 as a result far? I ve cleaned the MAF sensor. Checked for links in the intake. following I put my Turbo OBDII app on, all seems good except that the TPS stays constant in relation to 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 desire the mechanic to know before I be next to you? No, I guess that is it.
Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a fast malfunction find if you unplug the meter and manage the engine without it. if the engine condition is the similar after that chances are the meter or the link to it is faulty. Its as well as worth cleaning the MAF sensor wires, as they can acquire coated taking into consideration dirt greater than period which then offsets the reading. Use some entrance cleaner or brake cleaner to spray can onto the wires to surgically remove the dirt on no account be next to the wires considering anything as they are enormously fragile
gone I begin the car, the engine surges up with 1200 and 2000 rpm help and forth. I misused the IAC and the TPS in imitation of no correct in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle eagerness screw to belittle the rpm and it would support for a while. Now, the engine is until the end of time surging to the dwindling where I cannot drive it for startle of damage to the drive train. Any experienced solution?