David1436215410

I just connected a gm 3 bar but it won't calibrate. I get the same error message as bob. The map is showing 17 kpa and 1.77v. I've tried switching the wires. When i did i got 2kpa and voltage is 0v. So rhe wires should be the other way around. Changed back the wires and now the map is showing 210kpa and 3.25v. What happened now? The map sensor is giving out higher voltage all the sudden.Â