p0171

Hi all, I’ve been having some issues on my 2017 Encore Preferred (1.4 LUV, 65,000km), and I’m really hoping for some help! For the past month or so, my MIL has been coming on and off, and my code scanner is saying P0171. Checked for vacuum leaks (valve cover, purge valve solenoid, intake...

2004 Buick LeSabre check engine code P0171 (lean air/fuel ratio) we have cleaned MAF sensor and have done vacuum leak test. Took to the shop and he wouldn’t work on it, said it could be any one of 40+ things. Any ideas or tips on what to do next?

I have an 02 Buick LeSabre with 125,000 mi on it. At first I was having random misfires, code p0300. S ended up replacing the spark plugs. But they issue still occurred, turns out it was my mass air flow sensor and a small oxygen leak. I caught the parts fixed and there are perfectly fine. As...

Hi, I am 2015 buick owner of 104,111mi bought it with 42,500mi. Currently I have had to change my Purge Valve than month or so I had to change my Mass air flow sensor (MAF), then a few days later the Manifold absolute Pressure sensor (MAP) I Drove my Buick for ten minutes the Sputtering and...

I have P0171, And I have replace the breather hose, the vacuum hose that goes with a breather hose, the mass airflow sensor, and even the mass airflow sensor harness. Still getting the code. Any ideas? Anything else to check

I would like to start by saying....yes I've taken it to a shop....with that being said...they say my intake gaskets need replaced. Now this code has been on here for 2 years (comes and goes). I've noticed no change in performance along with no noises or leaks. It started around 98,000 miles...

I continue to have issues with a p0171 code showing lean, but it goes off and on. I would say it's on 70% of the time and off 30% of the time. I have hit it with carb cleaner pretty thoroughly and noticed no difference in idle. In general, it's never a rough idle, either. Any ideas? I got the...

I have two issues on my 1998 LeSabre Limited. 1) Heater blows nice and hot on driver's side and small backseat vents (on back of armrest) BUT blows nothing but COLD air on passenger side. This is true upper, middle, lower vents. 2) The check engine light just recently popped a p0171 code, bank...