quote:Originally posted by comp2:
I drew up and cut my own plate for the XDI. As a note, check out the red alternator wire. It was screwing with the trigger. I had to put a plate over it.
Nicely done on the install. I didn't know how dirty the old electrical systems were until I started on this EFI install. Had a gremlin that was real tough to sort out. Before the doing the trigger wheel I was still using an MSD system and taking the tach output to run the EFI. Energy from the 6AL spark box was bleeding over in the the tach signal, but the data logs for the rpm were perfectly clean, however the manifold pressure sensor(MAP) was all over the place. After several days of research and trial and error I ran a temporary tach wire that avoided coming close to any other ignition wires and problem fixed.
Properly grounded shielded wire on the crank trigger definitely helps too.