how do i read codes on my crx with obd1 conversion. i know theres some jumper but i can only find out about it on a 9295, not sure about efs since its converted. if it matters, im not using a premade harness, i just wired it up by myself.

 

Some EFs (older ones, 88 and 89, maybe 90) have the jumper located on the driver's side of the engine compartment, just ahead of the shock tower. Its got a little yellow rubber cap on the plug. I think starting in 91, they moved the jumper to the area by the ECU. I've never seen an EF with the jumper located there, but I've "heard" of it.

The code checking procedure is otherwise the exact same as the 92-95.

 

thanks, ok so i jumped it, and turned it ot the first key position, no check engine light. then i turned it to the second, got the fuel pump to prime, and the cel flashes once, long flash, maybe 2 seconds long. i was thinking ok it could be a code 10, that or its just does that to let u know theres no codes. code 10 is intake air temp i think, but my car istn starting which is why i thought id check the codes. jw is the super long flash mean 10 or what?