P0174 Ford taurus ses -

Question

HELLO, my name is Stacy, and I have a 2002 FORD TAURUS SES (V6).. About 2 weeks ago I was at a light and then took off, I didn't hit the gas hard, I just took off regularly.. And it had a problem going, it missed, struggled to go and took a minute to go.. it fixed itself but the bad thing is it triggered the check engine light, and it has been on ever since. It only happens when I'm taking off. Only sometimes too. I took it to Advanced Auto, and Auto Zone and did a check engine check, it showed the code: po174. My problem is there are so many different things that they told me. They said the valves, sensors, filters etc.. I'm trying to figure out what to do first, what I can buy to try to fix the problem, kind of like a step by step, I don't want to go get the wrong parts, or spend crazy money when I don't need to.. PLEASE SOMEONE HELP ME??? I really need to fix this, it's my only car.. my Gmail is: [email protected] please respond someone... :(

Answer 1

P0174 Ford - Fuel Injection System Too Lean Bank 2

this means there is too much air and not enough fuel. The first thing to do is check to see if there are any intake leaks, a broken or cracked hose can also cause this issue

 

see picture below for one of the things to check.

 

 

 

Possible causes

- Intake air leaks

- Faulty front heated oxygen sensor

- Ignition misfiring 

- Faulty fuel injectors 

- Exhaust gas leaks

- Incorrect fuel pressure

- Lack of fuel

- Faulty Mass Air Flow (MAF) sensor

- Incorrect Positive Crankcase Ventilation (PCV) hose connection

 

if you cant fix it take it to a mechanic who has a smoke test mechine it will be a lot easier