Got Codes Read

[rude_life]

Got my codes pulled yesterday at my buddy's shop...The only one was code 556 : Fuel Pump circuit failure
Which he said was common among Ford's with replaced fuel pump's.

 

[HISSIN50]

Kris, that is the primary FP circuit code IIRC. It can mean that the pump lost its loaded power feed for a split second for some reason, or that there is a more serious issue.

Have you noticed any issues lately?

Good luck.

 

[rude_life]

Havent noticed anything in particular...The idle is always kind of "missy", so to speak..It isnt a very smooth idle and sometimes she dies when i stop at a stop sign or a red light.

 

[CManT1914]

My friend had that code a while back, but it never effected his driveability.