P02B3

Cylinder 7 - Fuel Trim at Min Limit

DTC P02B3, sometimes indicated as P02B300 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing cylinder 7 - fuel trim at min limit.

This code is set when the fuel trim is at its minimum limit in cylinder 7. This could be caused by a number of things, including a defective oxygen sensor, a vacuum leak, or a dirty fuel injector. If the code is intermittent, it may be caused by a weak or failing fuel pump.

  • P02B3: Cylinder 7 - Fuel Trim at Min Limit
  • P02B3: Fuel trim (FT), cylinder 7 – minimum control limit reached
  • P02B3 00: Fuel trim (FT), cylinder 7 - minimum control limit reached

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