i got a 5th gen lude and check engine light on. i need to run it see what code but don't know how, can someone help please. i know there's a plug, not sure which color and location.

 

http://www.hondaprelude.to/art....html

 

i took a look at that info ,and it doesnt say anything about a constant cel and a popup cel.
can they be checked the same way?

my simptoms are when im cruzing in gear 5-10%throttle i get a cel, i changed my o2 sensor to solve another cel popup ,when down shifting to slow to a stop i got a cel. but now it happens in the 5-10% throttle acceleration?
i think my jumper isnt conected correctly
looks like some more mystery solving to do.