G 3500 1 Ton Van V8-454 7.4L VIN N TBI (1995)
Manifold Pressure/Vacuum Sensor: Application and ID
MAP Sensor Color Key Insert
MAP Sensor Hot Stamped Number
MAP SENSOR IDENTIFICATION
The Manifold Absolute Pressure (MAP) sensor has two identifying marks: a "color key insert" and a "hot stamped number." Examples of both are
shown in the accompanying images.