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P219B GMC Code - Fuel Trim Cylinder Balance Bank 2

- Code Popularity: 25,901 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P219B GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Leaking or contaminated fuel injectors
  • Low fuel pressure or running out of fuel
  • Exhaust or intake air system leaks
  • Faulty Exhaust Gas Recirculation (EGR) system
  • Positive Crankcase Ventilation (PCV) system is leaking, or the valve is stuck open
  • Ignition system
  • Incorrectly seated engine oil dipstick, tube, or oil fill cap
⚠ Does your GMC have Safety Recalls? → Check here

How to Fix the DTC P219B GMC?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

The fuel trim cylinder balance diagnostic is sensitive to the heated oxygen sensor (HO2S) design. A non-factory sensor or an incorrect part number may set a false DTC. Monitoring the misfire current counters, or misfire graph may help to isolate the cylinder that is causing the condition.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P219B GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Excessive Fuel Consumption

Code P219B GMC Description

The Fuel Trim Cylinder Balance diagnostic detects a rich or lean cylinder to cylinder air/fuel ratio imbalance in each bank. The diagnostic monitors the pre-catalyst heated oxygen sensor (HO2S) signal's frequency and amplitude characteristics by calculating an accumulated voltage over a predetermined sample period. An imbalance is indicated when multiple samples of the accumulated voltage are consistently higher than the desired value.
The Diagnostic Trouble Code (DTC) will be set when multiple samples of the pre-catalyst HO2S accumulated voltage are consistently greater than the desired value.

OBDII Code P219B GMC - Fuel Trim Cylinder Balance Bank 2 - AutoCodes.com
P219B GMC Code - Fuel Trim Cylinder Balance Bank 2

Need More Information on the Code?

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Code P219B GMC comments

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