no cel when jumping the service connector

i need to adjust the timing i know cel works fine cause i have code 17. when i jumped the service connector with wire and a paper clip cel didnt come on at all, mine is a obd0 b20b with ls ecu i ve searched without any clear out info.

Thank you guys

sometimes you really need to jam the paperclip in there to make good contact. as the pins get old and corroded

yea i made sure been playing with it few days