5.4L with P171 and P174 check engine codes - Ford-Trucks.com
Dec 10, 2002 · Modular V8 (4.6L, 5.4L) - 5.4L with P171 and P174 check engine codes - The P171 and P174 codes are defined as a lean left bank and lean right bank in most auto …
P171 ,P174 codes - Ford Truck Enthusiasts Forums
Dec 12, 2009 · 1997 - 2006 Expedition & Navigator - P171 ,P174 codes - Hi I am new to this forum, I came across you all looking for answers about my 2000 Ford Expedition EB 5.4L. The …
p171 and p174 trouble code (runs fine) - Ford-Trucks.com
Dec 25, 2005 · 1983 - 2012 Ranger & B-Series - p171 and p174 trouble code (runs fine) - Ok I have 2 codes p171 and p174 but my truck runs fine. The gas mpg has droped to 12 mpg.
Chasing the dreaded P0171 - Ford Truck Enthusiasts Forums
Nov 1, 2017 · Well, the P0171 happened after I replaced the bugged up filter with one that was sitting on the shelf, used but fairly clean. Since the MAF measures air flow and in theory any …
P171 Code - Ford Truck Enthusiasts Forums
Aug 4, 2004 · 1997 - 2003 F150 - P171 Code - Anyone ever get a P171 code? If so what did you do to fix it? I have one that is resettable but comes back from time to time, no relation to …
Help me solve P171 and 174 - Ford Truck Enthusiasts Forums
Sep 13, 2016 · 1997 - 2003 F150 - Help me solve P171 and 174 - I have had a check engine light on for as long as I can remember for these codes. Only in the last few weeks have I noticed a …
Lean codes P0171 and P0174 SOLVED! - Ford-Trucks.com
1997 - 2003 F150 - Lean codes P0171 and P0174 SOLVED! - I finally found out what was giving me the codes and engine performance issues. I figured it had to be something simple because …
P171 code only - Ford Truck Enthusiasts Forums
Apr 3, 2014 · Explorer, Sport Trac, Mountaineer & Aviator - P171 code only - My 2000 Explorer check engine light came on. One code- P171. I cleared the code and 2 weeks later came back …
p0171, p0174, p0401 99 ford E350 - Ford Truck Enthusiasts Forums
Jun 6, 2011 · 1999 - 2016 Super Duty - p0171, p0174, p0401 99 ford E350 - Hello, I have a 99 ford E350 with 112K miles, that im trying to chase these trouble codes. i do know that 171, and …
P171 Code - Ford Truck Enthusiasts Forums
May 26, 2010 · 1997-2006 Expedition & Navigator - P171 Code - My 1999 Ford Expedition is throwing code P0171. This is a lean condition so I checked the PVC hose & valve & all other …