Mod please don't move this since the most knowledgable people are in here and this pertains to traction control on a high powered FI car...

let me ask you something:

It turns out that one of my ABS sensors has the gain too high while the car is stationary interfering with the racelogic traction control...basically the control thinks the wheel is spinning and once you revv to 2000 it starts to cut the injector signal.
the signal quits down once the car is moving at about 12 mph. For daily driving this is no prob we can just change the TC engagement point to 15mph. But when I'm at the track I'm launching at 5500 rpm from a stand still and everytime you revv ch4 (the peticular ABS sensor) is rising with it causing misfires, in other words I won't be able to do launches the way it's right now.

I read it's somewhat normal for the ABS sensors to have the gain way up when the car is stationary and it quites down once rolling but it looks like this one sensor is extra sensitive.

Is there a way to turn down the gain on the sensor and if how?
Or is there a way to better shield the sensor since it reacts to the RPM signal when stationed...the higher the rpm the higher the wheel speed, even though the car is standing still.
FYI: We're using the Greddy RPM CAN adapter in order to get the rpm signal in case that relates.

Help is appreciated

 

I forgot to add, this only happens if the injectors are connected to the tc. It does not matter if it's all 6 or just one, the moment an injector is connected the problem occours. If the injectors are not hooked in everything reads normal

 

try to PM "The King" Alan, i know he just wired one up on a supra a couple days ago and he is currently building his G35 and knows a good little bit about the car...

hope this helps some, i cant wait till you get it working correctly to see how it is, it should be sick!!!!

 

not a guru, but isn't there a way to totally disconnect the ABS, and if so, would that fix your problem?

 

that would completely void the purpose of the traction control since it uses the abs signals to analyze the driving

 

woodhouse shipped over a replacement ecu for the tc unit and everything works now, I"m on my way to pick up my car just barely in time for IDRC this weekend

 

Glad to hear it was something stupid. Another thing would have been to only run one channel as a reference. It really only needs one for drag racing. Since it's no longer an issue it really doesn't matter. Let us know how it comes out.