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John Deere 410J

F

freudianfloyd

Active Member
Joined
Sep 23, 2024
Messages
31
Location
Ohio
I recently picked up a nice 2011 410J TM with low hours. When looking over the machine and things, I noticed that the plug for the fuel/water separator was disconnected and zip tied out of the way. When checking the onboard diagnostics, there was a code 97.03 (water in fuel signal out of range high). I decided to try plugging it back in, and the code went away. Is there any reason this would've been disconnected? What harm could come from me plugging this back together?

It seemed to run fine with it connected and with it disconnected so I don't know what to think.

Any input would be appreciated.
 
D

Diesel Dave

Senior Member
Joined
Sep 29, 2022
Messages
2,699
Location
Ontario Canada
Check the onboard diagnostics for any stored codes.
I can only assume at some point there was excess water in the fuel detected or possibly a defective WIF sensor setting code 97.16 that would have caused the ECU to derate the engine and setting derate code 1569.31 .
Unplugging the WIF sensor set code 97.03 but that would not derate the engine.
 
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F

freudianfloyd

Active Member
Joined
Sep 23, 2024
Messages
31
Location
Ohio
Diesel Dave said:
Check the onboard diagnostics for any stored codes.
I can only assume at some point there was excess water in the fuel detected or possibly a defective WIF sensor setting code 97.16 that would have caused the ECU to derate the engine and setting derate code 1569.31 .
Unplugging the WIF sensor set code 97.03 but that would not derate the engine.
Click to expand...
I didn't see any other codes besides the 97.03. I don't have a scanner if that is required to find past codes, but with the sensor plugged in, there are no codes showing in the onboard diagnostics currently.
 
D

Diesel Dave

Senior Member
Joined
Sep 29, 2022
Messages
2,699
Location
Ontario Canada
freudianfloyd said:
I didn't see any other codes besides the 97.03. I don't have a scanner if that is required to find past codes, but with the sensor plugged in, there are no codes showing in the onboard diagnostics currently.
Click to expand...
You don’t need a scanner to find stored codes. If there are no other stored codes besides 97.03 then someone has previously cleared them.
Screenshot below from the operators manual.
.
1727698150593.jpeg
 
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