Chrysler Repair: 2003 t&c 3.8 engine, signal circuit, sensor signal

Question
I enjoy reading your q&a section.Can you tell me what p 1684 code is when I switch the ign.on off,on off? This is on a 2003 T&C van with a 3.8 engine.The engine runs real rough,has black smoke that smells like raw gas.Had code p107 show up,changed themap sensor but no help.Thanks for any input you can give me. Ralph

Answer
1684 is battery disconnect  
P0107-MAP SENSOR LOW
POSSIBLE CAUSES
MAP SENSOR VOLTAGE BELOW .078 VOLTS
(K6) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K6) 5 VOLT SUPPLY CIRCUIT OPEN
MAP SENSOR INTERNAL FAILURE
(K1) MAP SIGNAL CIRCUIT SHORTED TO GROUND
(K1) MAP SIGNAL CIRCUIT SHORTED TO (K4) SENSOR GROUND CIRCUIT
PCM (K6) 5 VOLT SUPPLY CIRCUIT
PCM (K1) MAP SENSOR SIGNAL CIRCUIT