Quote:
Originally Posted by DiscoQuinn
I'd like to find more information about this too. I'm curious as I'd like to disable the ABC/TC permanently as well and have yet to find a good thread about it on here, though I'm still looking.
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I found a solution for this on my build (2013 FRS) and its been working well for a year or so.
Current setup:
- Chase bays brake booster eliminator
- Chase bays bias valve
- ABS valve block removed
- ABS/VSC module retained
- Wheel speed sensors retained
- ABS fuse pulled for the pump (green 40a)
So the trick here is to leave the electronic module intact but separate it from the aluminum valve block that the lines attach to. You can just unbolt them and pull apart. I fabricated a small plexiglass/pvc backing for the exposed back of the module. The wheel speed sensors are wired directly into this module, and the ECU pulls the values from it instead of the sensors directly.
From my research and experience its the wheel speed values that causes limp mode here:
- No module, no sensors == limp mode
- Module, no sensors == limp mode
- Module, sensors == rev city
My build is caged, stripped and track only so CELs don't bother me but this will obviously cause a couple codes + ABS light to trip. One tidbit that may benefit someone, when testing my wheel sensors by hand I couldn't spin the wheel fast enough to detect a reading from a multimeter, however I was able to view wheel speed values just fine on a laptop/TechStream when driving down the road.