Would this work YAW/ ABS problems @Wot
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,952
Likes: 1
From: Waveland MS
Would this work YAW/ ABS problems @Wot
I've posted before, but haven't cured it yet. Alignment, changed tire sizes, yaw sensor, ohm'd the wheel speed sensors to no avail.
Question is, can I trick abs and TC by wiring all the speed sensor to one wheel(right rear) so it thinks every thing is peachy all the time.
Back story: c5z I swapped auto in, drags the brakes at wot whether it be the right side or rear brakes. It is driving me absolutely crazy.
Question is, can I trick abs and TC by wiring all the speed sensor to one wheel(right rear) so it thinks every thing is peachy all the time.
Back story: c5z I swapped auto in, drags the brakes at wot whether it be the right side or rear brakes. It is driving me absolutely crazy.
Advanced
Joined: Sep 2011
Posts: 54
Likes: 2
From: Alexandria Pa
Not sure if it would work I thought that the fronts and rears sent two different readings so that the computer could tell that there was the spec'd one inch tire diameter difference.
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
It won't work. The system expects to see a lower frequency (slower speed) signal from the front wheels.
Have you put a TechII onto the ABS/TC/AH system to see what the sensors are reading or are you just blindly stabbing in the dark hoping to fix it?
To me, that hints at the SWPS having an issue and it's telling the system the car should be turning.
Have you put a TechII onto the ABS/TC/AH system to see what the sensors are reading or are you just blindly stabbing in the dark hoping to fix it?
To me, that hints at the SWPS having an issue and it's telling the system the car should be turning.
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,952
Likes: 1
From: Waveland MS
Yea if they all run to seperate sensor then it won't work, I just need to know what the yaw sensor needs to see to be happy and go from there then.
Yes I am blindly trying to fix it, but I have tried every thing else I can think.
Yes I am blindly trying to fix it, but I have tried every thing else I can think.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Answer this question: At any time during your WOT run, do you ever need to turn the steering wheel off of dead nuts center to keep the car straight?
If the cars steering wheel is turned off center to keep the car straight, the EBTCM might think it needs to intervene to help keep the car straight.
When you thrust the car forward, the suspension bushings can compress and change the alignment enough to cause you to counter steer to keep the car straight.
I agree with Lionel,, The TECH 2 is the most accurate way to see what each sensor is reporting and why the EBTCM thinks it needs to intervene.
What happens if you turn TC to COMP Mode or OFF?
Bill
If the cars steering wheel is turned off center to keep the car straight, the EBTCM might think it needs to intervene to help keep the car straight.
When you thrust the car forward, the suspension bushings can compress and change the alignment enough to cause you to counter steer to keep the car straight.
I agree with Lionel,, The TECH 2 is the most accurate way to see what each sensor is reporting and why the EBTCM thinks it needs to intervene.
What happens if you turn TC to COMP Mode or OFF?
Bill
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
The yaw sensor tell the system how much it's turning. The SWPS tells the system how much the steering is turned. There are basically 2 reasons the system could be trying to correct itself. The yaw sensor says the car is rotating when the SWPS says the wheels are straight so the system tries to straighten the car out. Or, the SWPS says the wheels are turned but the yaw sensor says the car is not turning so the system tries to make the car turn.
I recall reading about a bracket or extra clip for the yaw sensor. Something to do with reinforcing the mounting location because otherwise the sensor can jiggle in the plastic and cause the AH system to act up.
I recall reading about a bracket or extra clip for the yaw sensor. Something to do with reinforcing the mounting location because otherwise the sensor can jiggle in the plastic and cause the AH system to act up.
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Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,952
Likes: 1
From: Waveland MS
Answer this question: At any time during your WOT run, do you ever need to turn the steering wheel off of dead nuts center to keep the car straight?
If the cars steering wheel is turned off center to keep the car straight, the EBTCM might think it needs to intervene to help keep the car straight.
When you thrust the car forward, the suspension bushings can compress and change the alignment enough to cause you to counter steer to keep the car straight.
I agree with Lionel,, The TECH 2 is the most accurate way to see what each sensor is reporting and why the EBTCM thinks it needs to intervene.
What happens if you turn TC to COMP Mode or OFF?
Bill
If the cars steering wheel is turned off center to keep the car straight, the EBTCM might think it needs to intervene to help keep the car straight.
When you thrust the car forward, the suspension bushings can compress and change the alignment enough to cause you to counter steer to keep the car straight.
I agree with Lionel,, The TECH 2 is the most accurate way to see what each sensor is reporting and why the EBTCM thinks it needs to intervene.
What happens if you turn TC to COMP Mode or OFF?
Bill