black box

G196PTO

#1 ◈ 2024-11-30

hi all. just took my ecu out of my crx n noticed that its got a round black box attached to it. its got a screw on the bottom n looks a bit like a variable resistor. was just wondering if anybody could tell me what it is. iv searched, but not found anything. oh n its a pm7 - e031 from a 89/90 crx cheers to anybody that can help!