That won't settle the issue for some people, although...

 

there's no way the brake recall is related to this throttle issue. a few episodes occured int he desert during the day and I highly doubt ice/moisture was an issue. but an e-throttle/ecu could have issues. on another note, I still can't get a smooth shift out of this car. man,I should really invest in one of those controllers for the e-throttle

 

So how the eff do you brake boost?

 

I'm not sure I understand the question.

 

I was just messing with ya guys - i forgot this was the xd section - its a turbo thing - i thought this was the tc section adn the fi guys would get a kick out of it - some bugs are turbo - guess they cant break boost tho if it goes to idle when you hold the break and gas at the same time

 

Isn't brake boosting REALLY bad for your car? Like torques the crap out of the eng/tran and kills your brakes? But ya, I think like 2 xD owners have turbos? so that joke went over most our heads

 

Break boosting isnt bad on anything except the breaks - youre basically just putting the car under load just like it would be under normal acceleration - actually - your breaks can be compared to the resistance used on a dyno SO yeah - all it does is eat your brake pads And in fact i brake boost quite a bit and havent really noticed any real excessive wear on my pads

 

My opinion is it is neither the driver's reaction in these situations or the floor mats fault. NHTSA is currently doing an ongoing investigation on Toyota's that puts the blame on either faulty automotive fuses, and/ or a faulty variable valve timing with intelligence system.

I'm not an expert on brakes but currently, Toyota's modern braking system uses both external braking with brake pads and engine braking of closing off the throttle is used when slowing down. In the case of the runaway Toyota's, NHTSA thinks faulty fuses caused a glitch in the VVTi system and results in the throttle wide open and unable to close. If thats the case, no amount of external braking would slow the car down except a wall.

So the NHTSA guys kind of makes sense and no, I don't think it has anything to do with the brakes or their recall. One last point, today's Toyota engines are built in a way that the drive shaft does not disengage from the wheels when braking is applied. I think before 2000, Toyota engines were built with retractable drive shafts, which would provide a bypass system in case the VVTi system goes wrong.

We'll find out more when NHTSA finishes their investigation.

 

The one thing, mechanically, I hate about this car. Drove a Yaris S the same day as the xD, and it was a much smoother shift. I am annoyed when I still stall the F'er every once and a while after 23,000 miles!

 

I call BS on both accounts.

If you are sitting in your car STOPPED, be it a 5.0 liter Mustang or a 1.5 liter Prius, if the throttle suddenly went to the floor and you with your adrenaline rush hit the brakes hard, that car is going to stop. I do not know of an engine in a car that can over power a stopped vehicles brakes. Remember the "brake stands" of the muscle cars from years back? People with their 442's would sit there with full throttle and full brakes and not move. Let a little off the brakes, the rear tires break loose and burn the rear tires off without moving an inch.

Now a vehicle at SPEED is a different matter. Standing on the brakes is going to bring the car down, then the tranny will begin to fight you as it down shifts into lower gears, but you won't be racing out of control of over 100 mph with your feet on the brakes.

Something else is to play in all these occurrences. Be it electronic throttle, or maybe lost vacuum for the brakes due to wide open throttle. Time will tell.

Drive shafts that disengage? This I have never heard of until now. Any info on this would be appreciated.

 

A little more reading on this subject for those that are interested:

http://www-odi.nhtsa.dot.gov/defects...intVersion=YES