It's from an e36 m52b28 - 1 plug was blantantly cut off and sitting in the bottom of the box it was sent to me in. 2 wires match, but the 3rd is a white/red but the plug has white/red with yellow dots. Is it safe to assume it came from here? Seems like it is, just worried on colour difference.
Second is a 2 wire one , Green/white and Blue/Yellow. On the section coming under the intake mani, Any idea what this is from?
Lastly is the main relay I guess which is on the piece of loom just before the ECU plug. What kind of relay is required here?
Pics;





