fat cat

Can we be sure that Toyota/Lexus actually considers the delay/hesitation a mistake?

All I got from the service manager at Lexus of Bellevue about a week ago was his grousing about people being to cheap to use premium fuel. Talk about being totally out of touch with your customer base!

Personally I think Toyota is, has been, concentrating on the "standard" delay/hesitation that arises, justifiably, from the new automatic transmission control techniques recommended by Sierra Research back in 99 and not realizing that a significant level, a few, drivers are for some as yet unknown reason expereincing an extended delay/hesitation symptom.

Under the new techniques, ASL (Agressive Shift Logic) in particular, these transaxles will be dramatically quicker to upshift on full or even partial, slight, throttle "lift". Obviously that will result in the transaxle being in the wrong gear ratio when/if the driver subsequenctly decides to accelerate. The only advantage I can see for the use of premium fuel is that the downshift selection will/can be more decisive due to less likelihood that the downshift will result in engine knock/ping.

If electonic accelerator pedal assembly's output is between 0.1 and 0.8 volts the pedal is assumed to be fully released and the engine will be commanded to idle. "Usable" range is designated in the 2004 Lexus RX330 shop/repair manuals to be between 0.8 volts and 5 volts. Yet the test procedure in the shop manual indicates that the allowable output voltage of the sensor with the pedal fully released can be as high as 1.3 volts and still be acceptable.

Does not compute!

I find that when I turned the heated seat on or when I turned on the defogger, the accerleration was not as smooth as when they were off. Would turning them on affect the voltage of the sensor?