I thought the ECU monitors three signals as a part of the equation you're talking about: IGt, IGf and IG- Unless they're all screwing up in harmony a code is bound to show up.... I could be wrong completely wrong though, I haven't had the pleasure of working with a TCCS where simply swapping out components as a last ditch effort didn't cure it. I would replace the wires along with the connectors. Corroded wire has a higher resistance too.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
If you're so inclined I'm always more than happy to accept tips via PayPal. 
Tip Jar ---> 
|