P0174 Diagnostic Guide
P0174 may mean the engine controller is seeing a lean air-fuel condition on one side of the engine.
Article vehicle: 2015-2025 Ford F150 2.7 EcoBoost
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P0174: P0174 Diagnostic Guide
Vehicle-specific published guides for this diagnostic trouble code.
P0174 Diagnostic Guide
P0174 means the PCM may see Bank 2 running too lean and may add fuel correction to compensate.
Article vehicle: 2015-2025 Ford F150 2.7 EcoBoost
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P0174 Diagnostic Guide
P0174 often means the PCM may be adding fuel because one bank appears lean.
Article vehicle: 2015-2025 Ford F150 5.0CoyoteGas
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P0174 Diagnostic Guide
P0174 may indicate the PCM is seeing Fuel System 2/1 operating lean, meaning fuel correction can be higher than expected to maintain the commanded mixture.
Article vehicle: 2019-2024 Ram 1500Classic 3.6PentastarGas
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Fuel System 2/1 Lean
P0174 may mean the PCM is seeing a lean condition and may be adding fuel correction based on exhaust oxygen feedback.
Article vehicle: 2019-2024 Ram 1500Classic 5.7HEMIGas
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P0174 Diagnostic Guide
P0174 generally means the PCM may be seeing a lean fuel mixture and may be adding fuel to compensate.
Article vehicle: 2019-2024 Ram 1500DT 5.7HEMIGas
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P0174 Diagnostic Guide
P0174 may mean the PCM is seeing a lean condition on bank 2 based on fuel control feedback.
Article vehicle: 2019-2025 Ram 1500DT 3.6PentastarGas
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Fuel System 2/1 Lean
P0174 generally means the PCM may be seeing a lean condition on the 2/1 fuel system and may be adding fuel to compensate.
Article vehicle: 2019-2025 Ram 2500HD 6.4HEMIGas
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