Dan_K

My check engine light came on, but has since turned off. I have a P0148 Fuel Delivery Error code. Anybody have experience with this? The light is off, should I take it to the dealer, or wait until it/if comes on again? I hope this isn't another injector.
thanks
DK

53 willys

P0148-HIGH PRESSURE COMMON RAIL (HPCR) CHECKSUM

WHEN MONITORED
While the engine is running.

SET CONDITION
A deviation between the fuel pressure set point and the actual fuel pressure.

POSSIBLE CAUSES

• Others DTC's present
• Fuel leaks
• Fuel control actuator
• Fuel pressure sensor
• Cascade overflow valve
• Check valve damaged or blocked
• Fuel return line obstruction, damage, or debris.
• Lift pump flow
• Air in fuel system
• Leaking fuel injectors or high pressure connectors
• Pressure limiting valve
• High pressure fuel pump
• Intermittent condition

That's what I found about it...
Check all your connections to your X to the Z-llerator
and fuel pressure sensor

Dan_K

Good info, thanks for the reply.

vegascosty

I fix my 2006 Ram 5.9 with PO148 code by changing the fuel filter....I change the OEM Bosch Fuel Rail Pressure Sensor with no success, i change the Fuel Pressure Regulator with no success and the last I change the fuel filter and BINGO .....after you change the filter your car may run poor, you have to rev the rpm to clear the injectors .......if the filter is not the problem in your case you can change the Fuel Pressure Regulator and the Fuel Rail Pressure Sensor...Thank you...