Problem report: 08 E38, BBL, TCS/AH trouble

[Tony @ MPH]

When using BBL on a 08 Z06 E38 I consistently get TCS/AH issues. It looks like it happens when the V2 handshakes with the PCM. Car continues to drive fine but TCS/AH lights are lit up and TCS/AH is fully disabled.

I do also randomly get this same issue even when not using BBL (e.g., when using my laptop to scan and tune). It seems more prominent when using BBL though.

[02Z06]

I had the same problem on my 08 Z06 found the problem was that I connected to the ALDL after the engine was running. Plug into the ALDL before you start the engine and it should be OK.

[Tony @ MPH]

Good tip, thanks. That may solve the BBL issue. Now I just need to figure out what's going on that trips TCS/AH when not using BBL...