check engine light

[mab6680]

my mpg have gone a mile or two since i cleaned the maf and it does run better too i have drove about two hundred mile with no cel but who knows with these thing i got a ford service manual off of ebay and this is what it says



NOTE:
It is necessary to address all Continuous Memory Ignition and Misfire DTCs, if received during Continuous Memory testing, before addressing any Fuel Trim DTCs.

Fuel System DTC Reference List:

-- Bank 1 = DTCs P0171 (lean) and P0172 (rich)

-- Bank 2 = DTCs P0174 (lean) and P0175 (rich)

l Check intake air system for leaks, obstructions and damage.

l Check air cleaner element, air cleaner housing for blockage.

l Verify integrity of the PCV system.

l Check for vacuum leaks.

l Are any of the above concerns present?

Yes
REPAIR as necessary. COMPLETE KAM Reset.

No
GO to «DC25».