shmelvin

I have spent over $600 so far trying to clear this code, they have replaced an oil separator and some sort of sensor and the light keeps coming back on after a couple of hours.
Has anyone else experienced this and can you offer a solution?


P0174
bank 2 system too lean
confirmed

flynavy

was the sensor replaced an 0x sensor?

shmelvin

No they checked out OK

smith2010Q7

I assume it is the Fuel Pressure Sensor (G247) that they replace? (did they do the volt test or replace it and waste your money)

When was the last time you replaced your fuel filter? I will do that 1st.

smith2010Q7

some more troubleshooting on your bank 2 problem. (fuel system if you have not replace your filter in a long time)

Fuel system
Excessive fuel pressure
Leaking or contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Air leaks after the MAF
Vacuum leaks
Improper seated engine oil dipstick
Stuck EGR valve
Oil overfill
Cam timing
Cylinder compression
Exhaust leaks before or near HO2Ss.

markray

That looks like o2 sensor code to me