What are these wires for?

[pShenk]

While installing the My15M, I noticed these wires (B1 and B2) and this connector (A). I don't see what they would be for, does anyone know?

 

[dlaing]

"A" is used to connect to the serial port on a computer, using TuneBoy, and probably TechnoResearch, or Axeone, but not PCIII.

Not sure about the "B" lines.

I seem to recall the B lines activate when the fuel pump is running, so it is likely for some sort of test.

[mark.gilmore]

While installing the My15M, I noticed these wires (B1 and B2) and this connector (A). I don't see what they would be for, does anyone know?

 

 

Often wondered that myself.

[pShenk]

"A" is used to connect to the serial port on a computer, using TuneBoy, and probably TechnoResearch, or Axeone, but not PCIII.

Not sure about the "B" lines.

I seem to recall the B lines activate when the fuel pump is running, so it is likely for some sort of test.

 

Thanks dlaing, that makes perfect sense (the test port). I'm still curious what the "B" wires are for, if anyone knows for sure.

[Murray]

The last of the carbed 1100 sports had a marelli digiplex ignition unit in which you could retard the timing two degrees by earthing a loose wire. Other than twin plugging I have no idea why thats useful maybe something similar it could also be an input for a oxy sensor as I understand some V11's had them and some didn't depending on the country it was delivered too.