i converted my car from obd2 to obd1 and im running a chipped p28. of course i hook up our snap on scan tool to pull codes using the obd2 plug and nothing. i have the blue 2 wire plug by my ecu which i thought i could throw a jumper wire in the get my codes to flash but no such luck. also no 3 wire plug to hook up to my hon-1 adapter. need help pulling codes! thanks!