Has anybody ran a 87 tbi 350 with a hsr, 730 ecm, aujp bin and had a running rich problem? I have searched over and over. I am going to check the pickup coil, dought it. The blm stays at 108, cell at 4. I have no vacuum leaks. I read that the o2 will go bad after running rich but I have changed two of them, then got a heated one for 80 bucks, can't keep changing them. I am at a loss!

 

I know, search, search, search! I have, I have, I have. the coil read 750 ohms, anyone?