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Electronic Fuel Control Valve Circuit – Voltage Above Normal or Shorted to High Source
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Overview
Electronic Fuel Control Valve Circuit – Voltage Above Normal or Shorted to High Source
| CODE | REASON | EFFECT |
| Fault Code: 455 PID: S018 SPN: 633 FMI: 3 LAMP: Warning SRT: |
Electronic Fuel Control Valve Circuit – Voltage Above Normal or Shorted to High Source. |
Possible reduced engine performance or shutdowns. |
 Fuel Control Valve Circuit
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Circuit Description
The commanded position signal from the ECM to the fuel control valve is a +12-VDC pulse-width modulated signal. A short to battery voltage in the harness or at the fuel control valve connector will cause Fault Code 455 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 t05-455
Last Modified: 15-Jul-2010
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