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Old 12-31-2015, 09:48 AM   #9
GM-power
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Location: Little Rock, Arkansas
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Re: GM tech help needed?

What about pins 4, 5, 11, 12, 13, 14; what's the story on those? You need those communication lines so the ECM can command pressure changes, also what about pin 2 (out signal) and your using 9 as your ground?
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