P0171 Engne Code

[trailboy]

Has anyone one had the code P0171?

I am currently having it on my 03 with a 3.4L motor,,, the code says it is running to Lean and to check the

O2 Sensor,
MAF Sensor
Ignition misfire
Fuel injector problem

As per Autozone using there scanner,,, Any thought on where to start???

Thanks

 

[melsg5]

read the list of causes and solutions on this site

http://www.obd-codes.com/p0171

 

[trailboy]

Cool, thank you!

Wow, that site has some really good information!

 

[red fuji]

P0171

2007 Torrent 3.4L .
P0171 code and CEL light.
My symptoms:
- temporary lack of power at ~20mph then normal operation resumes past 20 mph.(engine revs as if engine and trans disengaged clutch then engages again)
-Detonation
-CEL light

Idle is ok.

Thank you for this:
http://www.obd-codes.com/p0171
possible solutions listed:
•Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
•Inspect all vacuum and PCV hoses, replace/repair as required
•Inspect all hoses and connections in the air intake system
•Inspect and/or test the intake manifold gaskets for leakage
•Check for a dirty fuel filter and proper fuel pressure
•Ideally you'll want to monitor short and long term fuel trims using an advanced scan tool
•If you have access, you may want to run a smoke test

Out of those listed above , which one is the most common occurance Pontiac Torrent owners have experienced ?
Thanks.

______________________________

 

[melsg5]

there is no most common that you can generalize, if you never change your fuel filter that would be an obvious cause otherwise a vacuum leak of some sort would be a good place to start.