Check engine light-low pressure fuel module

[B J Outlaw]

All diagnostics done on module and are perfect. Updated software still check engine light will not turn off. Anyone had this problem? 2015 LR4

 

[jlglr4]

What is the exact code, and what diagnostics were done? Can’t tell much based on info provided.

 

[Michael Gain]

Just like @jlglr4 stated, it's hard to tell based on the info. Super swag, I would say one of the fuel sensors. Both are on the passenger side. One is on the lower cross member on the fuel line going from the fuel tank (measures fuel pressure from the low pressure pump) and the other is located close to the firewall, on the back of the passenger side fuel rail (measures fuel pressure from the high pressure pumps).

 

[jlglr4]

Or the LP fuel pump itself, which many have had issues with.

 

[Nelson Toussaint]

If it is a "hard" code, you may have to delete it using code reader. Try adding BG44K in fuel to clean system. I had a "hard" code for high pressure system, but it cleared after "Reduced Performance" in engine computer cleared (on it's own).