Thread: TBI Swap
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Old 06-29-09, 12:36 AM   #51 (permalink)
cruiserbrett
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Join Date: Feb 2002
Location: San Diego
Posts: 1,848
1227747 ecms also have a crank trigger signal that lets the ECM know that the engine is in crank mode and consequently changes the fuel tables. might be one of the wires to the starter for the gm harness.

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