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Manifold Absolute Pressure (MAP) Sensor (-4.3L)

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Manifold Absolute Pressure (MAP) Sensor (-4.3L) Connector End View
GM684840Courtesy of GENERAL MOTORS CORP.
Manifold Absolute Pressure (MAP) Sensor (-4.3L)

Pin Wire Circuit Function
A 0.35 OG/BK 469 Low Reference (Gas)
0.5 OG/BK IC93 Low Reference (Diesel)
B 0.35 L-GN 432 MAP Sensor Signal (Gas)
0.5 L-GN IC94 MAP Sensor Signal (Diesel)
C 0.35 GY 2704 5-Volt Reference (Gas)
0.5 GY IC92 5-Volt Reference (Diesel)
Connector Part Information 
  • OEM: 12129946
  • Service: 88987997
  • Description: 3-Way F Metri-Pack 150 Series, Sealed (GY)
Terminal Part Information 
  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)
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