OK, I've looked over the faqs but could you point me in the right direction. Ive got an 89 Accord LXI that the check engine light comes on after I start driving for about 2-3 minutes. Just want to get a list to narrow down what it could possily be. Thanks

Jump the Service Check Connector and read what code(s) come up. My guess is that the oxygen sensor is throwing a code, after the engine starts to warm up and comes out of "open loop" mode.

This link should help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-6.html#post832012