New Scanmaster - works key on, but not engine running

turbo84gn

I'd rather be waterskiing
Joined
May 24, 2001
Just installed a new scanmaster 2.1 in an 87. With key on, it works. When I start the engine, i see it display 2.1 for a second, then nothing. There is still power there. Any ideas?
 
Exactly where did you plug the data wire (white I believe) into???
 
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