92 Indy 500 efi - electrical question
My 92 Indy 500 efi is still shutting down after runiing great for 6-8 minutes. The ready light goes out , everything shuts down , but if I hit the key quick enough , it'll keep running. While listening at idle , it revs slightly before it dies. I can get the same result unplugging the small , single wire from the CDI box. Is my CDI box bad ? I tried a different ECM with the same results. Please point me in the right direction , theres just too many wires !!