P0171 and P0174 codes?

denzel05 · Apr 25, 2014

So yesterday check engine light came on, got code P0103 for maf sensor. Cleaned the sensor, and air filter, cleared the code and truck ran fine. This morning on way to work truck was idleing low, and then stalled at a light. Check engine light came on again. codes P0171 and P0174 came up. Fuel injection system too lean in banks 1 and 2. Wtf does this mean, and what could be the cause? Thanks in advance, any advice would be greatly appreciated.

Slywhitty · Apr 25, 2014

How many miles on your truck? Ever changed the fuel filter?

denzel05 · Apr 25, 2014

Just hit 58,000 miles, and no never changed the fuel filter.

BSP06XRU · Apr 25, 2014

Read THIS

Good luck! :top:

Doublld · Apr 25, 2014

denzel05 said:
Just hit 58,000 miles, and no never changed the fuel filter.

Do you have a aftermarket intake? If so time for a MAF cal

denzel05 · Apr 25, 2014

Yes URD, been on truck since 2006, this just started.

Cleared codes, ran truck for about 5 miles, ran fine. Shut it off, restarted it now I got code P0103 maf sensor?

Slywhitty · Apr 25, 2014

You have anyone near you that you could switch maf sensors with to see if that fixes it?

denzel05 · Apr 25, 2014

Bought a new one today, well ordered it today, it will be in tomorrow.

BSP06XRU said:
Read THIS

Good luck! :top:

Wow that's a lot of readin lol, maybe it time to drop it off at shop, and have someone else deal with it.

Doublld · Apr 26, 2014

denzel05 said:
Bought a new one today, well ordered it today, it will be in tomorrow.

Wow that's a lot of readin lol, maybe it time to drop it off at shop, and have someone else deal with it.

Usually if it's both banks or global could be a vacuum leak I'd let someone who knows what they are doing take a look at it so you don't chase your tail around

denzel05 · Apr 27, 2014

Well truck been running good for 24 hrs. now, cleared codes, and CEL has not come back. (fingers crossed) Replaced pcv valve and hose, cleaned throttle body, cleaned maf sensor again, and repositioned the air filter. These URD filters are so damn touchy, got to be on there just right. Anyway thank you all for the advice. CEL's are enough to drive a person crazy! :top:

Jwall · Apr 27, 2014

glad to hear you got her all fixed up.

Welcome!

P0171 and P0174 codes?

denzel05

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Slywhitty

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denzel05

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BSP06XRU

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Doublld

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denzel05

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Slywhitty

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