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PCM / Computer pin diagram


1RangerNut

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Looking for a diagram for a 1989 B2, had a pin come out with the connector and need to know if it's important. :dunno:

Thanks: Steve
 


RonD

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1RangerNut

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Central,IL
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1989
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2.9L
Transmission
Automatic
Thanks a lot, it's pin 60 looks like a ground for maybe the fuel system.


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RonD

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PCM Grounds are important, most are not shared internally so one not working could effect just one or a few systems, not all systems, common practice in computer circuit design but not in automotive power distribution, where almost anything metal is a shared ground, lol.
 

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