Water In Fuel Condition
P1140 — Water In Fuel Condition
System: Powertrain | Type: Manufacturer-Specific | Make: Generic
P1140 is a manufacturer-specific powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.
Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.
P1140 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.
This code is set when the powertrain control module (PCM) detects excessive water contamination in the fuel system, as reported by the water-in-fuel (WIF) sensor. Water in the fuel can cause poor engine performance, misfires, and potential damage to the fuel injection system.
Detailed possible causes for P1140 are available to TaT members.
Unlock with Free TrialStep-by-step diagnostic guidance for P1140 is available to TaT members. Our Diagnostic Assistant provides professional-level troubleshooting procedures written by experienced technicians.
Unlock with Free Trial| Code | P1140 |
| System | Powertrain |
| Type | Manufacturer-Specific |
| Make | Generic |
| Causes | Available |
| Diag. Assistant | Available |
| Video | — |
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