P117B - Cylinder A/F Imbalance Monitoring Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P117B Possible Causes

  • Fuel injector
  • Exhaust gas leaks
  • Incorrect fuel pressure
  • Mass air flow sensor
  • Intake air leaks
  • Lack of fuel
  • Incorrect PCV hose connection
  • Improper spark plug
  • Insufficient compression
  • The fuel injector circuit is open or shorted
  • Ignition coil
  • The ignition signal circuit is open or shorted

First diagnose P117B code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P117B code

    Labor: 1.0

    The cost of diagnosing the P117B code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P117B Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P117B Meaning

The Engine Control Module (ECM) monitors the lean/rich air fuel ratio state in any cylinder. The ECM sets the OBDII code when detects a lean/rich air fuel ratio state in any cylinder for a specified length of time.
OBDII Code P117B - Cylinder A/F Imbalance Monitoring Bank 2 - Engine-Codes.com

P117B More Information

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