[unlegendary]

Alright I live in California

My car is a 240sx 1998 that was previously automatic swapped to manual, haha it went pretty good except i'm still running on my automatic ecu

i have access to a 97 ecu but will it pass smog? due to different years and stuff? will it get rid of that CEL?

also since were on the topic of five speed swaps, someone gave me a speed sensor with two black confusing wires. i'm pretty scared to try to put it on the wrong way because i'm not sure if it will fry my stuff.

thanks for reading

- mike