[ICETOO]

Do the LS 1 powered cobras with the ECU set up have a check engine light or engine fault indicator lamp that that should come up when the ECU shifts to limp mode, (like the little check engine icon on the LCD screen in the VY cars).

If so you would hope the cars monitoring system could you there is a problem.

If not, its back to the plug and play with the OBD II from the network coms bus, and then old fashion hands on fault finding. Technology is unreal when it works but is a nuisance when it does not.