I have a friend who is willing to help me dyno my S4 FC, and he says that to get the correct TQ readings he needs to hook up a RPM sensor to the trailing coil I guess? But he is not sure, does any one ever had to deal with this before? I am unsure of the make of the dyno.

 

Dealt with it SEVERAL times. The RPM pickup needs to be on trailing, thats where the tach signal comes from. And if I recall, it needs to be the TOGGLE wire, not a plug wire.

 

should be a bullet connector at the trailing coil..yellow/GR?

 

that should work

 

Does any one have any pics? if not I will try to see if I can find it then post the one I think it is.

 

lift up the trailing coil, it's right there. can't miss it.

 

Is it Yellow and blue and a female style bullet connector.

 

Yes,it is the only bullet connector located at the trailing coil.