i called the dealer as i am under warranty and he said these things aren't covered under warranty. honestly, i am not car savvy enough to do those things myself. are those things easy to do? and or how are they done? a quick run down would be appreciated. thanks bartkat!
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The technical service bulletins/work is covered under warranty. The shifting problem is covered. It calls for the service department to reflash the ECU.
If you want to try a computer reset just do this.
Open the hood.
Find the battery, next to the firewall on passenger side.
Unbolt the clamp on the negative battery terminal. (the one with the black wire)
Slip the clamp with black wire off the terminal.
Let the car sit for 30 minutes.
Reconnect the negative wire to the battery.
Start the car and go out and drive at varying speeds and acceleration rates for maybe 20 miles.
See if it doesn't run and shift better after that.
(You may have to reset the clock and your radio preset buttons after reconnecting.)
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dealer said it was only covered up to 50k and that if it needed the ecu upgrade then i am paying. he also said that it is pretty common for lexus's to have this hesitation prob... is this true? what about an air flow sensor? would this help. thanks again bartkat! you the man. i'll give the battery reset a try.
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I think the dealer could still do the reflash on the TSB cause there was a recall on that. Maybe try another dealer?
Mine doesn't have a hesitation problem, engine wise. Mine also has a sticker they put under the hood when they did the ECU reflash. However, sometimes under full throttle shifting from 1 to 2 on automatic. It does do better though after I reset the ECU.
As for the MAF cleaning, It's in the intake section right after the air box. You should see the wires coming out of it.
If you just disconnect the tube from the airbox, then spray some electrical contact cleaner around the inside of that fitting, that may be enough to clean the MAF. You just gotta be careful in there because the sensor is just thin metal and easy to break.