Hello all, I recently purchased a fitech ultimate tpi standalone for my car. I’m having trouble removing the old harness from the car as I don’t know what is connected to the engine and what is not, or other words I just don’t know what all to take out that just involves the ecu. If anyone has a diagram of the entire harness and where it goes or pictures that would help me so much. Thank you.

 

Best Buy a FSM , all the efi harness goes on the right hand side of the engine . Esc and relays are the furthest it goes onto the drivers side.

 

ahhh ok, so the big group of wires that goes into the firewall under the relays isn’t a part of the ecu harness?

 

C100 is separate , I think the fp feed goes through c100 from the relay but I think that’s it. Could be wrong though

 

Ok, when I get off work I’ll tear into it, probably gonna take the plenum off to free up some room for the sensors at the back of the block. Another question, close to the harness side that connects to the ecu, there’s 2 quick connects that plug into a harness that goes under the dash towards the driver side, do you know what that is? If I have any questions or get stuck I’ll post back on here. Thank you for your help.

 

C207 ?
https://berlinetta.info/C207.htm