Vehicles

SPN 102 FMI 18 Fault Code [Engine Issues] Explained

SPN 102 FMI 18 fault code happens when intake manifold 1 pressure is too low. This can cause incomplete engine combustion.

Causes:

  • Air intake leaks
  • Damaged sensor
  • Restriction in air filter or exhaust
  • Fuel filter issues
  • EGR plugged ports
  • Failed turbo