WebAnother common cause of Ford P0171 and P0174 ean codes is an engine vacuum leak. Ford TSB 04-17-4 details procedures for checking fuel trim and looking for vacuum leaks. On 3.8L Fords with a split-plenum intake manifold, the port gaskets and isolator bolt assemblies for the upper plenum can deteriorate over time and leak air, often as a result ... WebJun 13, 2024 · ODBII reader showed P0455, P0171, and P0174 Replaced 3 oxygen sensors (single CAT and exhausts), fuel pump (fuel gage did not work anyway), fuel cap, both rubber hoses connected to the fuel tank (looks like evap lines), and 3 rubber hoses that connect the solid lines on the frame to the engine (looks like evap lines).
SOLVED: PO171 and PO174 on Ford lightning - Fixya
WebNov 8, 2013 · For easy re-starts, the fuel system needs to be able to retain pressure between starts. Regarding if the hard start and the Lean codes are related, IMO what makes the most sense is a vacuum leak allowing unmetered air to enter. This makes the MAF read low. As result, the PCM does not add enough fuel. WebMay 24, 2024 · P0174 is most often reported on Chevy and Ford vehicles. More About P0174 and Lean / Rich Codes. ... How to Fix the P0174 Code. There are multiple reasons why code P0174 might be stored. Therefore, … phone tracker software free download
2005 F150 P0171 and P0174 codes - Car Forums and Automotive …
WebApr 11, 2024 · Ford F150 Brake Lines Diagram 34 Ford F250 Brake Line Diagram pada tanggal April 12, 2024 ford f150 brake lines diagram. 0 Get link; Facebook; Twitter; Pinterest; Email; Other Apps; 1999 Ford Expedition P0171 And P0174 2004 Ford Expedition P0446 pada tanggal April 11, 2024 Get link; Facebook; Twitter; WebWeb troublesome p0171 and p0174 codes on 1999 ford f150. In this video i have a ford ranger with lean codes on both banks, freeze frame indicates that the lean condition is happening at idle. ... Replacing the following parts did not fix the. Web 1999 ford explorer p0171 and p0174 codes. Web 1999 ford explorer xls with original 65,000 miles 4.0 ... WebNov 29, 2024 · 2,418 Answers. Both codes mean a lean condition on the engine (P0171 for Bank 1 and P0174 for Bank 2). This is almost always because of a vacuum leak. Check all vacuum lines and vacuum operated equipment (EGR, brake booster, fuel pressure regulator, etc) for leaks. It could also be the intake manifold gasket. how do you spell influence