spn-1908-fmi-3 Mercedes Fault Code :
Read the description of spn-1908-fmi-3 in KAMA3-5490 and the engine lights up for KAMA3 5490 Fault Codes code, there are some possible causes for it.
Fault Location
SCR Air Pressure Shut-Off Valve Solenoid
Fault Description
Circuit High
Fault PIN
LSCAN-MR