94 ATX runs rough with codes

[1MadSHO95]

172 ego not switching lean bank 1
176 ego not switching lean bank 2
217 #3 coil primary circuit fault
543 fuel pump circuit open- Battery to ECA
These are fast codes. Snap-on MT2500 scanner.

ECT TEMP 99 Degrees C
ECT V .5
OPEN LOOP? Should it be in closed loop based on Temp?

ANY HELP GREATLY APPRECIATED!!

OH, would a weak or bad battery cause some or all of my symptoms?

 

[St Louis SHO]

Change coil


Clear codes and try again.

 

[jmpSHO]

Change coil


Clear codes and try again.

That sounds like a good idea.