hey guys i swapped in a obd2 ls into my 96 ek. got it all wired up started up perfect on the first try. i got a code 91. whats the best way to address this problem. the engine runs fine and idles fine. took it for a test drive today and ran perfect. should i ignore it or convert to obd1. if i convert to obd1 will it get rid of this CEL. also what all is needed to convert to obd1, please help iam confused. thanks in advance.