P0296 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P0296 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0296 code.

OBD II Fault Code

  • OBD II P0296

OBD-II Code Decreased engine performance is defined as a Cylinder 12 Contribution/Balance

When the engine control module (PCM) detects that cylinder 12 is not sufficiently contributing to keeping the engine running properly, it will set code P0296.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P0296 Code

  • Fuel injector failure
  • Internal engine failure
  • Powertrain Control Module (PCM) software needs to be updated
  • Wiring issue

Common Repairs Needed for the P0296 Code

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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