CODES OF PO171 AND PO174 BANK 1 AND 2 BOTH WITH LEAN FUEL

  • Tiny
  • mike chouinard
  • 2005 Dodge Dakota
  • 100,500 miles

I have a Dodge Dakota that is not always getting the right gas amount it is giving me scan codes of po171 and po174 bank 1 and 2 both with lean fuel what would cause this to happen I have changed the egr and still reading and running lean

truck runs fine then its like it dont get the gas to always keep going and will stall some times

Monday, April 2nd, 2012 AT 9:09 PM

4 Answers

  • Tiny
  • hmac300
  • Expert
  • 42,987 posts

Check your fuel pressure first shold be 58psi +-2

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Monday, April 2nd, 2012 AT 10:34 PM
  • Tiny
  • mike chouinard
  • Member

Gas presure ok so its something else.

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Tuesday, April 3rd, 2012 AT 9:14 PM
  • Tiny
  • hmac300
  • Expert
  • 42,987 posts

Here are possible causes along with a vacuum leak.

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Tuesday, April 3rd, 2012 AT 10:43 PM
  • Tiny
  • djcl
  • Expert
  • 786 posts

DO YOU HAVE SCANNER FREZE FRAME DATA ON THAT CODE. DID IT SET @ HI SPEED OR IDLE HOT OR COLD

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Tuesday, April 3rd, 2012 AT 11:23 PM

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