Code Definition

P1092 — Fuel Trim Cylinder Balance Bank 2

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

About P1092

P1092 is a manufacturer-specific powertrain diagnostic trouble code recorded for Holden vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1092 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.

P1092 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 (ECM) monitors individual cylinder contribution by analysing crankshaft speed variations and oxygen sensor feedback while operating in closed loop. DTC P1092 is set when the ECM determines that one or more cylinders on Bank 2 require significantly different fuel correction compared to the calculated average for that bank, exceeding the calibrated imbalance limit. This indicates uneven combustion or fuel delivery between the cylinders on that bank, and the condition must be present for a specified time under stable operating conditions before the fault is recorded. Whe...

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