a few weeks ago i posted about a code 13, found out its the sensor inside the ecu. now for the problems

1. people suggested pulling a fuse for it, but i cant seem to find the right one, im assuming your talking about the ECU fuse, but which is it? i have a 94 vx.

2. people suggested swapping ecu with a known working one, i have a p30 in there (the one with the cel code). only other ecu i have around is a p28 that isnt chipped, would that work to test this? or would i need another p30 ecu?

tyvm and sorry to post about the same problem 2 times.