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If you wish to use the GM 3-Bar MAP sensor PN#12223861 in conjunction with your AEM 30-1400 for Fox Body 1986-1993 models, connect as follows:
On the GM MAP sensor you have A-B-C
Pin A= GROUND
Pin B= MAP SIGNAL OUTPUT
Pin C=5V
Connect Pin A to pin #46 on the AEM unit
Connect Pin B to pin #65 on the AEM unit
Connect pin C to pin #26 on the AEM unit
When you look at your instruction diagram that came with your AEM unit, the illustration diagrams are as you look at the AEM unit itself. They are NOT images of the CONNECTORS. So as you look at your unit, you should easily be able to figure out where the proper pins are. Pin #65 in the second to last pin on the BOTTOM row to the RIGHT as you look at your AEM unit viewing the pin side.
On the GM MAP sensor you have A-B-C
Pin A= GROUND
Pin B= MAP SIGNAL OUTPUT
Pin C=5V
Connect Pin A to pin #46 on the AEM unit
Connect Pin B to pin #65 on the AEM unit
Connect pin C to pin #26 on the AEM unit
When you look at your instruction diagram that came with your AEM unit, the illustration diagrams are as you look at the AEM unit itself. They are NOT images of the CONNECTORS. So as you look at your unit, you should easily be able to figure out where the proper pins are. Pin #65 in the second to last pin on the BOTTOM row to the RIGHT as you look at your AEM unit viewing the pin side.
