What do you need to know about Ford diagnostic trouble code?

The very first thing you need to know, about these two diagnostic trouble code (DTC), is that they do not accuse anything specific as being bad.

What causes Ford 4.6L to have code p0171?

Most Common Causes Of P0171, P0174 DTCs. I’ve Done All Of The Tests And I Still Have Codes P0171, P0174. More Ford 4.6L, 5.4L Diagnostic Tutorials. TIP 1: You’ll need a scan tool (that has Live Data capability) to take advantage of my tips and suggestions in this article.

What is the diagnostic code for Ford 4.6L?

This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4.6L or 5.4L equipped car, pick up, van or SUV. Although you can apply this info to any Ford vehicle with a V6 or V8, this info concentrates on the Ford 4.6L and 5.4L V8 engines.

What does po171 and po174 code mean?

An expert that got 5 achievements. 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.

The very first thing you need to know, about these two diagnostic trouble code (DTC), is that they do not accuse anything specific as being bad.

Most Common Causes Of P0171, P0174 DTCs. I’ve Done All Of The Tests And I Still Have Codes P0171, P0174. More Ford 4.6L, 5.4L Diagnostic Tutorials. TIP 1: You’ll need a scan tool (that has Live Data capability) to take advantage of my tips and suggestions in this article.

This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4.6L or 5.4L equipped car, pick up, van or SUV. Although you can apply this info to any Ford vehicle with a V6 or V8, this info concentrates on the Ford 4.6L and 5.4L V8 engines.