Code Definition

P1264 — Fuel injector 2 control limit exceeded

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

About P1264

P1264 is a manufacturer-specific powertrain diagnostic trouble code recorded for Audi vehicles. 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.

P1264 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 Engine Control Module runs a smooth running or cylinder balance function that measures crankshaft acceleration after each firing event and trims the injected quantity for each cylinder so all contribute equally. Every cylinder is allowed a limited correction range, and the module also watches how hard it must work on the injector drive to achieve the commanded delivery. DTC P1264 is stored when the correction required for cylinder 2 exceeds the permitted control limit, meaning the module has run out of authority to bring that cylinder into balance. The underlying cause is almost always a g...

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