Anyone know what this is?
 

I have an 06 F4i...this is in under the seat on the left side towards the back.

Hmm im actually not sure. I dont think my 01 has one of those in that spot from memory. You can always take it out, strap a timer to it, and leave it in a suspicious package in a public place then just sit back and watch the news. Im sure theyll tell say what it actually was.

maybe take a look in a service manual, looks like the 01-03 f4i has starter relay switch and PGM-FI Fuse Holder/Fuse Box in that area but your pictures doesn't look like that to me, but i'm no expert, good luck

hmmm ill see if i can look it up

I believe its the pgm-fi unit? Programmed Fuel Injection Unit. Are there 2 connectors that plug into it?

http://www.bluegauges.com/images/ref...agrams/f4i.jpg
http://www.bluegauges.com/images/ref...agrams/f4i.jpg

tada lol idk where its at on there but its somewhere haha

Ok......ECM it is

My God... Diagrams like that make me afraid of wiring.

That's the diagnostic connector.... you jump the two wires together and turn the key on, and it will flash out any stored codes using the FI light

x2 just like alot of honda cars.