Bobcat · Fuel
Bobcat code E000157-21: Rail pressure control fault
What it means
The engine ECU reports a fuel rail pressure control fault. SPN 157 is fuel rail pressure and FMI 21 means the reading has drifted low.
Can I keep running?
Stop: fix before runningNo. Stop the machine safely (bucket or attachment down, engine off) and find the cause before you run it again.
Check first
- Park on level ground, lower the lift arms and attachment to the ground, stop the engine and remove the key.
- Check the fuel level and refuel if low. If it ran dry, bleed air as the O&M manual shows.
- Drain water from the fuel filter into a container as the O&M manual shows. Bobcat says to do this daily before operating.
- Replace the fuel filter if it is due.
- Don't loosen high-pressure fuel lines or feel for fuel leaks with your hand. Common-rail fuel is under very high pressure; leave that to a dealer.
- Restart and see if the code comes back. If it does, stop and call your Bobcat dealer.
Likely causes
- Low fuel or air in the fuel system
- Plugged fuel filter or water in the fuel
- Restricted fuel supply line
- Rail pressure sensor or high-pressure pump fault
The fix
Fuel supply problems (low fuel, a plugged filter, water or air) cause many rail pressure codes. If the supply side is fine, a dealer needs to test rail pressure, the sensor and the pump.
Different code on your screen? Snap the display and Mechy reads it.
Questions
What does Bobcat code E000157-21 mean?
Rail pressure control fault. The engine ECU reports a fuel rail pressure control fault. SPN 157 is fuel rail pressure and FMI 21 means the reading has drifted low.
Can I keep running with E000157-21?
No. Stop the machine safely (bucket or attachment down, engine off) and find the cause before you run it again.
How do I fix Bobcat code E000157-21?
Fuel supply problems (low fuel, a plugged filter, water or air) cause many rail pressure codes. If the supply side is fine, a dealer needs to test rail pressure, the sensor and the pump.
Sources
Code meanings vary by model, serial range and software. Confirm with your operator's manual or Bobcat dealer before replacing parts.
Snap the display and Mechy reads the code
Take a photo of the screen and the machine, say what it is doing, and get the checks and the fix as steps with moving drawings.
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