Electronic Fuel Control Valve Circuit – Voltage Below Normal or Shorted to Low Source
|
Overview
Electronic Fuel Control Valve Circuit – Voltage Below Normal or Shorted to Low Source
CODE | REASON | EFFECT |
Fault Code: 511 PID: S018 SPN: 633 FMI: 4 LAMP: Warning SRT: |
Electronic Fuel Control Valve Circuit – Voltage Below Normal or Shorted to Low Source. |
Possible reduced engine performance or shutdowns. |
![]() Fuel Control Valve Circuit
|
Circuit Description
The commanded position signal from the ECM to the fuel control valve is a 12-VDC pulse-width modulated signal. An open circuit in the harness or at the fuel control valve connector will cause Fault Code 511 to be set.
Component Location
100-002 for the component location.
Shop Talk
The pulse-width modulated signal that is sent to the fuel control valve from the ECM should always read an alternating +12 VDC and 0 VDC.
Refer to Troubleshooting Fault Code t05-511
Last Modified: 15-Jul-2010