I was given these along with a complete TPI setup. I don't know what year/engine these came off of. They don't look like any relays on my cars, but both of mine are Speed Density, so they might be from a MAF setup. Can anyone help identify these and if they even belong to the TPI unit?

 

My car's 1988 and MAF, the 2 round ones look like fan relays and the square is probably for fuel pump or MAF burn off?
no idea what that other thing is haha

 

The big flat bastard is the ESC module, aka knock module. The code will probably ID what application it matches.

The two rounded ones are the same type of relays used on the later cars for fuel pump, fans, A/C high, etc. They're generally generic. Good ones to keep as spares if your car uses them.

The rectangular relay is the earlier style, could serve various purposes. Several of that style are application specific. If there's a part number on the top, Google might help ID it.