Hey guys. I have an 04 Electra Glide that has a big bore, Reinhardt true duals, KN air filter and a Harley race tuner. In Sturgis this year I popped a code 0108 MAP sensor. it ran fine up until we were riding through town.every stop it had a high idle when we get out on the highway it started spitting and sputtering. I spent a lot of hours trying to figure this problem out. So far, I have changed the map sensor, fuel filter, put a new air filter in it, swapped a coil, changed injectors, spark plug wires, new spark plugs, checked for a pinhole in the fuel lines in the tank, put a gauge on the fuel system while running and stays at 60. I've looked for loose connections. I did notice the negative battery cable was loose at one time and melted the negative post a little, tightened it up and still no change. I've checked pins on the harness, and have checked all my fuses. I'm lost. Any idea s would be greatly appreciated.

 

I see two items for a 0108 code..

P0108 Map Sensor Failed High Carb
P0108 Map Sensor High EFI