P1193: Manufacturer-specific fuel/emissions related code
Severity: medium
What it means: P1193 is a manufacturer-specific code. On many Ram Cummins trucks it points to a fuel system or emissions-related fault that needs the exact OEM definition for your year.
Safe to drive? Depends on symptoms. If the truck is derated, no. If it runs normally, drive carefully to a diesel shop with the code freeze-frame.
Common symptoms
- Check engine light
- May accompany other fuel or emissions codes
- Possible derate
Likely causes, ranked
- Fuel delivery or emissions sensor fault (verify OEM definition)Shop
- Wiring or connector issueShop
- Related turbo/emissions faults stored togetherShop
Vehicle-specific notes
- 2014–2018 Ram 2500: A 2015 Ram 2500 Cummins owner saw P1193 in a stack of pending codes with P2228 and P0102 shortly after buying the truck. Read the full answer · Source
DIY or shop?
Have a shop pull the OEM code text. Do not guess with universal code charts alone.
Vehicle-specific notes
- Ram 2500 (2014-2018): A 2015 Ram 2500 Cummins owner saw P1193 in a stack of pending codes with P2228 and P0102 shortly after buying the truck.