Murphy fault code

[Rseo10]

Just got my rig started up. Throwing a fault code spn 000729 FMI 03 OC 2. Anyone know what this is?

[DieselJeep]

I got a code for a few seconds the first time I fired it up. I'm trying to search quickserve, but it's being slow. It would be nice to have a basic list of codes in case they pop up while driving so we know to cry or keep going.

[DieselJeep]

Did it go away? QuickServe isn't working apparently it has been searching for several minutes.

[Rseo10]

Didn’t go away. I now have several other ones that are appearing as well. The engine appears to be running fine from observation but I’m not sure

[DieselJeep]

Looking through their Fault Code guide online SPN 729 is listed when they mention the grid heater. I'm not sure exactly what the other part would mean. I would think, unless there's an issue with the wiring, this should go away. Do you think you started it too quickly?

[DieselJeep]

Is your fused link in there? Are you running a very long wire or maybe there's some resistance there? I let mine idle a few seconds and after shutting off and turning back on I never had a code come on. I assume all fluids are in there. But maybe there's a loose wire somewhere. Maybe review your grounds.

[DieselJeep]

Either way congratulations on getting it running. I remember it being a surreal moment for me. My emotions were mixed with nerves, terror, and glee.

[Rseo10]

Got it figured out. Had the grid heater mounted but forgot to attach it to the battery. After that I don’t think the code came up again. So far so good. A few little things to clean up electrically but it’s on its way! Thanks dieseljeep. Very excited to drive this thing

[Biodiesel Don]

It would be nice to share a few basics on interrpetting fault codes? What do SPN, FMI, and OC stand for?

I got a SPN 000097 FMI 03 OC 002

I assume I've got something on the harness hooked up incoreclty, beucase this only showed up after moving our bulkhead fitting and wiring a fan relay.

Do all R2.8 owners get acces to the Fault Code Analyer Tool (FCAT) on Quickserve Online? I can't find it when I log in with my ESN. I downloaded the Fault Code Analyzer on my iphone, but is tells me 97 or 000097 is not applicable to my ESN.

[Sanders]

Don! I know you know this by now but for the sake of others who may be reading this later on:

SPN = Suspect Parameter Numbers (What is the component or sensor)
FMI = Failure Mode Identifier (What's wrong with it)
OC = Occurrence (How many times has it happened)

Your specific fault was due to Water In Fuel (WIF) sensor not being hooked up at your fuel filter:

"Water in Fuel Indicator Sensor Circuit - Voltage Above Normal or Shorted to High Source"

[Biodiesel Don]

Thanks. These little clues are vey helpful