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Runs rough says o2 rich


Runs rough says o2 rich Mechanic's Assistant: What is the make/model/year of your car? 2006 ford f250 Mechanic's Assistant: Are you fixing your F250 yourself? What have you tried so far? 5.4l gas Mechanic's A...

Runs rough says o2 rich Mechanic's Assistant: What is the make/model/year of your car? 2006 ford f250 Mechanic's Assistant: Are you fixing your F250 yourself? What have you tried so far? 5.4l gas Mechanic's Assistant: Have you noticed an increase in fuel consumption? And how does the F250 start—same as usual? Yes I have noticed very poor fuel economy and hard to start and stalls

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Responses

Automotive Expert
Good evening my name is \*\*\*\*\* \*\*\*\*\* i'll be doing my best to help you this evening can you tell me have you done and diagnosis steps and do you have a check [engine](/topics-engine-ford/) light or codes?

No check engineI have put a fuel pump, fuel pump driver, plugs, maf, and a throttle body, all 4 o2 sensors, fuel pressure switch and fixed all vaccum leaksTruck has 113,450 milesHard to start will die at idle will smoke some when startedI did jump wire from positive battery to disconnect ground for like 10 minutes
Automotive Expert
Will it smoke while driving? what color smoke?

Did fuel filter and air filter
Automotive Expert
You did alot of work to this truck!

Not much smoke after a few seconds but have to go to about 2000 rpm to startNo ping or knockI also put new [exhaust](/topics-exhaust-ford/) gaskets and headers
Automotive Expert
Aftermarket headers? or oem? Performance headers could be throwing off the o2 sensors without a tune

OemOld ones had cracks
Automotive Expert
Have you done a fuel pressure test on the truck as yet?

a few weeks agoWhen it was running lean lol but found vaccum leak
Automotive Expert
All good to the rail and while driving?

Was then yes
Automotive Expert
How did you find out the truck was rich?

Smoke is kinda black and looking at info on scan tool says o2 is richhaving to keep foot on pedal to keep it running I just kinda deducted it
Automotive Expert
Checked the injectors to see if any stuck open?

If I pull the PCs line it will idle way upI have not checked injectorsWhat is best way to do so? With low miles and I use injectors cleaner at every oil changeAbout 1500 miles ago I used BG fuel cleaner, engine flush and moaUse synthetic oil and change every 5,000 milesIn my diesel trucks have had good luck doing so
Automotive Expert
i use the textron [fuel injector](/topics-fuel-injector-ford/) cleaner in my sierra and i had one fail at 60k and i always use 93 octane you can pull the injectors and take them to get cleaned and tested

Ok so what's best way to test or should I replace all
Automotive Expert
here in ny its a same day process at 20 a injector

Ok I'm not sure where would do it near me
Automotive Expert
What state are you in let me find you a place?

New MexicoIn las cruces near El Paso to88007
Automotive Expert
let me look

Is there other possible thingsLike vvtNo chain slap or anything
Automotive Expert
i dont belive so.. i think ive found a place for you they charge 16 an injector to clean test and balance

Ok
Automotive Expert
[http://hurstinjectorservice.com](http://hurstinjectorservice.com)

New standard ignition injectors are $38 each
Automotive Expert
Thats really not bad at the price i would replace them

Where is this place at to rebuildAny way to test in the truck
Automotive Expert
i googled injector service with your zip yea you can but its messy you gotta disable the spark on the truck and pull the rail and monitor the spray pattern

Ok no ohm meter or anything
Automotive Expert
no because its its stuck open its mechanical not eletrical

Ok and no real other options haYour confident will fix
Automotive Expert
not with what your describing yea i am Hope i was able to shed some light on your issue if you can would you please rate my service?

I did all the injectors and a fuel driver still not idle
Automotive Expert
you replaced all the injectors and what on the driver side?
Automotive Expert
before you said it would stall does it still do that?

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