So my cat fault is no longer showing up! Yeah! BUT

I now have a P0170-00 (E8) Bank 1 Fault showing up...

Does this mean its running lean? or what does it mean?


I used my GAP tool to look at the o2 sensors just to compare.

Bank 1 - sensor 1 is -133ma / B2 Sen1 is -23ma
Bank 1 - sensor 2 is 0V / B2/Sen2 is .7v

Is that normal?

 

You probably have an air leak post MAF. Check all connections. If you have a smoke tester, you cold use that to find the leak. Keep in mind the EGR valves always leak.

Good luck