Page 3 of 4: Troubleshooting P0171 and P0174 (Ford 4. 6L, 5. 4L). Other Important P0171 and P0174 Tests. Low Fuel Pressure Causing a Lean Condition. Fuel Pump problems causing a Lean Condition.2003 Ford Expedition V8 Two Wheel Drive Automatic Hi, I am trying to an answer or orientation to fix a stubborn problem I am having with my 2003 Expedition. The check engine light came on and it gives me P0171& P0174. I replaced the oxygen sensors but had no luck. 01 ford expedition p0171
Jul 21, 2013 1999 Ford expedition with p0171 and pending p0174 code fix.
Apr 15, 2017 Video on how we diagnosed dtc p0171, system too lean bank 1, on a 1999 ford expedition. 2001 ford expedition 125k miles P0171 and p0174 9 Answers. Can't find the problem I replace the pcv hose Clean the mass air flow Replace the fuel filter (old one wasn't bad) Sprayed the whole car with carb cleanner and nothing Replace the throttle01 ford expedition p0171 Possible Causes and Repair Information for P0171 Ford code. Learn what does P0171 Ford means? P0171 Ford Fuel Injection System Too Lean Bank 1
Possible Causes and Repair Information for P0174 Ford code. Learn what does P0174 Ford means? P0174 Ford Fuel Injection System Too Lean Bank 2 01 ford expedition p0171 P0174 System Too Lean (Bank 2) Technical Description. System Too Lean (Bank 2) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBDII equipped vehicles. Brands of vehicles affected include but are not limited to Ford, Lexus, Chevy, BMW, Toyota, Jaguar, Acura, Volvo, Nissan, etc. Mar 09, 2015 This video is a demonstration on how to identify and fix a common part failure in the 2003 Ford Expedition 5. 4L Triton Engine that generates the error codes P0171 and What causes Trouble Code P0171 and P0174? Ford Expedition Answer: OBD II Trouble Code P0171 indicates that the oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust, or not enough fuel in the exhaust). On the Ford Expedition engine (V6V8V10) Bank 1 is the side of the engine that has cylinder# 1. how to fix code p0171 for 2003 Ford Expedition? Vehicle: 2003 Ford Expedition 5. 7 fix; codep0171; asked Jan 2, 2014 by anonymous. 1 Answer. P0171 Fuel trim lean (bank 1) This 02 sensor detects the engine condition, having a lean bank code can be from a MAF (mass airflow), do a MAF cleaning on the mass airflow, and the fuel pressure will