Okay I'm installing my 3 bar map sensor tomarrow and I've done searches on this topic and the only thing I've found it the Hondata install info. I have a '99 Si, the thing that gets me is that on there diagram from Hondata the wires they cut from the map sensor are different colors than mine. So I looked on my buddies GSR harness to check and they are the also different than mine(but same as Hondata diagram). So I was hoping that someone could point me in the right direction. I know I could/should use a multi-meter to verify, but it would be easier if someone with experience could pass on the info. So what wire is the ground, what wire is the map signal and what wire is the 5V power? Thanks in advance. Later Allen