air filter

2001 CHEVROLET S-10
47,560 MILES • 6 CYL • 2WD • AUTOMATIC
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PISTOL PETE 310
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  • 1 POST
I have a 2001 chevy s-10 v6 4.3 engine and i replace the air filter with a high performance K & N filter. And i am getting two codes P0171 & P0174. I was reading online that it was getting to much air so that's why i am getting those codes HELP!!
Feb 22, 2011 at 8:31 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Lean fuel condition could be caused by one of the following below:

1.Vacuum leaks
2.EGR and PCV valve.
3.Low fuel pressure.
4.Dirty fuel injectors.
5.Mass Air Flow Sensor.
6.Oxygen Sensor.
Feb 22, 2011 at 8:34 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
I would be checking that oil from the K&N filter pad has not contaminated the air flow mere element, i have seen this before.

mark (mhpautos)
Feb 22, 2011 at 8:43 PM
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