hello
i just bought a 90 2.0 si and the ce light is on. i looked at the ecu but i am not sure how to read the codes. i think i have a code 1 and a code 7. could someone tell me how a 1 and seven would show up .
thanks

 

a 1 and 7 would show up as a quick flash, then a long pause then 7 quick flashes

a 17 would show up as one long flash, a short pause, then 7 quick flashes

code 1 is Oxygen Content (o2 sensor)

code 7 is Throttle Angle (TPS)

code 17 is Speed sensor

 

thanks, as a matter of fact my speedo is intermittent . where is the speed sensor. also any idea how much?
thanks a lot