Code Definition

P1174 — Fuel measurement system bank 1 injection timing incorrect

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Volkswagen

About P1174

P1174 is a manufacturer-specific powertrain diagnostic trouble code recorded for Volkswagen vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1174 is stored, the module has detected a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine.

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.

P1174 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.

Code Information

The fuel measurement system covers everything the Engine Control Module (ECM) uses to decide how much fuel to deliver and exactly when to deliver it, including the injectors, the fuel supply, and the crankshaft and camshaft position signals that establish the firing point. DTC P1174 is set when the ECM determines that the injection timing, meaning the start of injection point relative to crankshaft position, does not match the value it has commanded for bank 1, or when the correction required to keep bank 1 fuelling on target has moved outside the permitted window. This is a plausibility fault...

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