Had an issue with the check engine light showing me it had a historic code stored so I made up a jumper as instructions in the electrical diagnostics manual and hooked it up to the wrong 2 pins. I hooked it up in the right way and it won't flash out a code to me but still says it has a historic code. Did I screw something up by hooking the pins wrong? Anyone had any experience as such?

 

Did you clear the code(s) prior to doing the jumper? Did you try and clear the code(s) after the jumper? What code(s) are being displayed???

 

What hear and model bike?
M

 

It's a 2003 CVO Deuce with the 95 motor on it. It won't blink out a code. without a jumper I start the bike and the check engine light comes on to show it's working then goes out for a few seconds and comes back on for the 8 seconds to show a historic code and then it comes on intermittently while riding. sometimes comes on for 2 miles and sometimes just blinks on and off. But when I try to fetch a code with a jumper , there's nothing there. I am worried about hooking up the jumper backwards and what that may have done.

 

No code in it to be found, I didn't clear anything. Just the light coming on telling me there's a historic code. I even tried to clear it by the 50 start cycles with no luck it's still coming on.

 

some codes can only be read with a scan tool, unless things changed.
sometimes the eng light will come on showing a current malfunction but does not meet the criteria to log a code.
codes can be mis-leading, get a code because of another malfunction but sensor/sys still good, there is a hierarchy when dealing with code since correcting one item solves another that was depending upon its function.