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P00F7

Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 2

The relationship between barometric pressure and turbo inlet pressure (bank 2) is implausible — at engine off the two should match. Indicates an inlet sensor or barometric sensor fault.

  • Check engine light: Yes
  • Emissions related: Yes
  • Repair difficulty: medium

Symptoms

  • Check engine light on
  • Significant power loss / limp mode
  • Possible blue or black smoke from exhaust
  • Whistling or hissing sound from intake

Common causes

Ordered by how often each turns out to be the cause.

  • Turbo inlet pressure sensor driftedCommon

Parts involved

  • Barometric Pressure Sensor
  • Turbo Inlet Pressure Sensor B2

P00F7 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.