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B198 Fuel Composition Sensor (LHU) Connector End View

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: B198 Fuel Composition Sensor (LHU) Connector End View
GM2422393Courtesy of GENERAL MOTORS CORP.
B198 Fuel Composition Sensor (LHU)

Pin Wire Circuit Function
1 0.5 PK/BK 5294 Powertrain Main Relay Fused Supply (5)
2 0.5 BK/WH 451 Ground
3 0.5 WH 1579 Fuel Temperature/ Composition Signal
Connector Part Information 
  • Harness Type: Engine
  • OEM Connector: 19168017
  • Service Connector: Pending
  • Description: 3-Way F GT150 Series, Sealed
Terminal Part Information 
  • Terminated Lead: Pending
  • Release Tool: Not Available
  • Diagnostic Test Probe: Pending
  • Terminal/Tray: Service by Harness - See Part Catalog
  • Core/Insulation Crimp: Not Available
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