P0174 code

[bufordanthony]

Recently popped an ABS light. Hooked up the scanner, and while troubleshooting the ABS found I had a 174 code ONLY (not the typical 171 and 174 together). Check engine light never came on. Long term fuel trim is through the roof at 22 on both banks. Seems to run fine, woulda never known if I had not hooked up the computer. Anyone got any ideas.

 

[Spowerback]

P0174 System too Lean (Bank 2) P0171 System too Lean (Bank 1) visit site page pdf http://www.equus.com/downloads/manuals/93-0058.pdf

 

[Spowerback]

A code P0171 may mean that one or more of the following has happened:

•The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters
may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
•There could be a vacuum leak downstream of the MAF sensor.

other p0174 oxygene sensor

 

[bufordanthony]

Pulled out my aftermarket JET MAF sensor and put my stock one back in. Cleared the computer and drove it around, and rechecked. All is good in the world now. Long Term Fuel Trim is back down below 10 (7.3 & 2.6), and the truck is running alot smoother.