Been battling a bad misfire issue on my 2014 V8-380-C-D. Rich codes on both banks, you can see the short term trim pull fuel on both banks as soon as the O2 sensors come online. Oil getting lots of fuel contamination. Raw fuel on spark plugs.
Threw in the towel and decided to let a local VP dealer do the diagnostics. They diagnosed it as an “over spraying fuel pump”.
Is that even a thing? All the VP fuel pump failures I know about are from paint contamination and resulting low pressure.
With proper duty cycle on injectors, can too high pressure from a pump really cause fuel flooding issues? It’s a returnless system with an integrated pressure regulator.
Threw in the towel and decided to let a local VP dealer do the diagnostics. They diagnosed it as an “over spraying fuel pump”.
Is that even a thing? All the VP fuel pump failures I know about are from paint contamination and resulting low pressure.
With proper duty cycle on injectors, can too high pressure from a pump really cause fuel flooding issues? It’s a returnless system with an integrated pressure regulator.