Sup guys..Im new to this forum..but i have a question (and i searched threads first with no luck).

What are if there are any wires/pins on the ECU that i can get ECU error codes from? My car is running in limp mode and I cant get the engine light to flash. The car is on its 3rd motor and well the ECU wiring isnt in the greatest shape..i think maybe the wires that send the signal to the dash are clipped or dead..any info? Logically if this is the case i can put an LED on these pins and get the reading??

Thanks in advance.