I installed the COS for the E38. But it doesnt seem to be pulling timing when activated. I set the entire B5114 table to -10. B5115 is all zeros. B5145 is set to all 1's. When i flip the switch there is no audible change in the engine and the spark adv pid in the scan tool does not change at all. I know the switch works because i can set the stoich table to 9:1 at the higher percentages and it goes extreme rich when i flip the switch.

Any thoughts?
Also one thread i read says B5114 adds/subtracts from the main timing table and another thread says it interpolates between the two. Which one is it?

Thanks in advance.