service engine light on

[mikeh44]

i got the p0172 and p0174 off my truck also my scanner said no cause

 

[Sphinx]

Lean left and right bank. Most likely a vacuum leak some where.

 

[NHale623]

P0172 = System too Rich (Bank 1)
P0174 = System too Lean (Bank 2)

That's an interesting set of codes. Are you sure it wasn't P0171 and P0174?

 

[mikeh44]

today i got p0175

 

[Sphinx]

For a code P0175, the factory service manual suggests checking the following:
For lean and rich DTCs:
Fuel system:
-Excessive fuel pressure.
-Leaking/contaminated fuel injectors.
-Leaking fuel pressure regulator.
-Low fuel pressure or running out of fuel.
-Vapor recovery system.
Induction system:
-Air leaks after the MAF.
-Vacuum Leaks.
-PCV system.
-Improperly seated engine oil dipstick.
EGR system:
-Leaking gasket.
-Stuck EGR valve.
-Leaking diaphragm or EVR.
Base Engine:
-Oil overfill.
-Cam timing.
-Cylinder compression.
-Exhaust leaks before or near the HO2Ss.

 

[mikeh44]

took to dealer today they said that they got codes of system rich both banks but could not find any reason for the reading but they said that ford had a new update for my computer they gave me the update at no charge the only thing that i paid for was the diagnostic charge plus tax $97.00