P0031
P0037
P0051
P0057
P0102

All appeared after replacing alternator - Car died while driving. Started back in limp mode.

Remedied by replacing the EFI relay. I found this problem through the Tundra & Tacoma forum respectively.

I made this thread so it's in the archives for anyone who searches and those 5 codes pop up together.

 

are you saying the new or old alternator destroyed the EFI relay?
what does it look like?

 

I'm not going to single out the new alternator yet as the culprit as I was driving around with the dying alternator.




The gray fuse next to the top right brown fuse.