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Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15305555 5-Way F Metri-Pack 150 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	BK	552	Low Reference
B	TN	472	IAT Sensor Signal
C	BK/WH	451	Ground
D	PK	439	Ignition 1 Voltage
E	YE	492	MAF Sensor Signal