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2007 Hummer H3 P0171 Error Code

I had the vehicle at 4 different shops, each have yet to solve the P0171 error code and have ended up either creating other damages or have refused offer me anything that remotely resembled customer service.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 295 Answers

SOURCE: Solving the following Error Codes

The codes you have metion is for fuel injection miss fires. and lean condition . These codes most likely mean you need to start with a tune up , and fuel injection cleaning . The oxygen sensor are very common problem with the po171,po174 code. The other common problem with the codes after a tune up is done is the intake manifold gasket is leaking .
I would take the vehicle in to a mechanic for a tune up and then demand the mechanic clears all the codes . You can take the vehicle back and drive it for a few weeks. IF the codes come back then have the vehicle recheck for the oxygen sensors or intake gaskets .

Posted on Apr 30, 2009

  • 1986 Answers

SOURCE: Check engine light is on, error code is P0171.

Check the MAFS (sensor connected to air intake) and check the hoses under your hood to see if any are broken as this will be the cheapest to fix..


If all the hoses are good, then you should have your O2 Sensor checked as that is the most likely culprit

Posted on Aug 17, 2009

outdoorsman5
  • 631 Answers

SOURCE: 1999 Dodge Ram 1500 Pickup error code p0171

This code means that system to lean, bank 1.
some of the possible causes to make this code set are
1. intake or exhaust leak,
2. problem with the air system.
3. MAF (Mass Air Flow sensor)VAF sensor (Volume air flow sensor)
4. fuel pressure/pump
5. injector(s)
6. HO2S (Oxygen sensor)

Posted on Sep 16, 2009

  • 15 Answers

SOURCE: I have a 2007 H3 hummer, suddenly my fan does

It's the HVAC blower resistor in the air plenum under the glovebox. New resistor and wiring harness is about $70 at the Hummer Dealer.

Posted on Oct 07, 2009

  • 474 Answers

SOURCE: hummer H3 (2008) does not start and error message

your anti theft is activated. consualt owners manual

Posted on Nov 28, 2009

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