So the other day coming home from work my service engine soon light came on. Truck is still running fine. So I went to autozone to get is scanned. This is what it came up as

P0174
P0171
B1676
C1206
Any takers?

 

Standard P Codes:
P0174 System too Lean (Bank 2)
P0171 System too Lean (Bank 1)
ABS Codes:
B1676 Battery Voltage out of Range
When the code C1206 comes on by itself it usually means the abs module failed. Since it came on with the other one you might be able to fix them both at the same time. Did your battery or alternator die recently?

 

Theyre most likely all triggered by the voltage out of range code. If your voltage gets to low the system wont work accurately.

id have the battery and alt tested

 

Just replaced battery and alternator about 4-5mo ago. Abs light have been on for a while

 

I'd reset everything and see if the codes go away.

 

My truck hasn't been running rough either.