Code Definition

P1153 — Bank 2 Fuel Control Shifted Lean

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

About P1153

P1153 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.

When P1153 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.

P1153 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

This code is set when the powertrain control module (PCM) detects that the fuel control system for Bank 2 has shifted excessively lean and is unable to compensate within normal adaptive fuel trim limits. This may indicate an issue with air intake, fuel delivery, or oxygen sensor performance.

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