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Old 02-16-2020   #20
-=Jeff=-
 
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,132
Default Re: ALDL Fault Codes

Power key on a 1991 does not work by grounding the pin.. you need a 645 ohm resistor across the power key pins on the ECM. that will keep it in Full Power mode
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1990 Corvette ZR-1 #1051
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