4.6 Mustang, idle problems

[Tech5]

FILTER FILTER WILL NOT CAUSE A SYSTEM TO LEAN ON BOTH OR EITHER BANKS!


ALSO IF THE O2 SENSOR IS BAD IT WILL KICK A BANK 1 OR 2 O2 SENSOR CODE, NOT A LEAN! I LOVE PEOPLE THAT DOESNT KNOW ANYTHING, I BET IF YOU HAVE THIS PROBLEM YOU WOULD BUY A O2 SENSOR FROM AUTOZONE AN RETURN IT OVER AN OVER AGAIN SWEARING THAT THE O2 SENSOR IS BAD, AFTER ABOUT 20 O2 SENSOR REPLACED YOU WOULD BRING IT TO MY SHOP WHERE I CHARGE YOU 70 TO CLEAN AN DIAG YOUR MAF SENSOR ...NOOB

I second Fuel Filter.. if you've already checked your IAC... Could also be a IAT or Intake Air Temp sensor bad..

Just read your post about the codes.. if you're getting a fuel lean it's usually caused by a bad O2 sensor. Have you ever had those replaced?? are you still running cats?

[Init2winit]

FILTER FILTER WILL NOT CAUSE A SYSTEM TO LEAN ON BOTH OR EITHER BANKS!

Since when? Stopped up filter = less fuel = lean condition = running rough = possible vibration........
I can't count the number of times I've found a clogged fuel filter on a ford, and has corrected a lean condition. And lots of those times, the clogged filter burned up the pump.

[Tech5]

A fuel filter isnt going to make a check engine light come on , unless its complete stopped in which it will kick misfire, manfacture codes, etc...I have fixed 1,230,00 fords with this same code all but a few was the MAF never ever being a fuel filter..... Not to mention if you read his post he has already replaced the filter so everything your saying isnt making any since good day mate!

Since when? Stopped up filter = less fuel = lean condition = running rough = possible vibration........
I can't count the number of times I've found a clogged fuel filter on a ford, and has corrected a lean condition. And lots of those times, the clogged filter burned up the pump.