Auto X techniques - Toyota Yaris Forums

whoguy · 08-27-2007, 11:23 PM

Hi..... it's probably something to do with the Vacuum assist on the brake system. If you open the throttle, vacuum behind the butterfly decreases which causes the Vacuum assist to work less effectively.

Normally when you hit the brakes, you would normally release the throttle allowing full vacuum to assist braking.

mojoyaris · 08-27-2007, 11:57 PM

Quote:

Originally Posted by whoguy

Hi..... it's probably something to do with the Vacuum assist on the brake system. If you open the throttle, vacuum behind the butterfly decreases which causes the Vacuum assist to work less effectively.

Normally when you hit the brakes, you would normally release the throttle allowing full vacuum to assist braking.

aha! Now that is starting to make sense.

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08-27-2007, 11:23 PM	#1
whoguy View User's Garage Drives: Yaris YRS Sedan Join Date: Sep 2006 Location: Sydney, Australia Posts: 65	Hi..... it's probably something to do with the Vacuum assist on the brake system. If you open the throttle, vacuum behind the butterfly decreases which causes the Vacuum assist to work less effectively. Normally when you hit the brakes, you would normally release the throttle allowing full vacuum to assist braking.