Questions tagged [p0171]
Code P0171 - System Too Lean. This code indicates an oxygen sensor has detected too much oxygen in the exhaust. Part of the P01xx - `Fuel and Air Metering` family of codes.
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02 upstream wire harness diagram
I have a 1996 Dodge Neon 2.0 L Vin C. DTC P0171 when I went to change 02 Sensor. I saw that my upstream 02 sensor connector harness side got melted, was to close the the exhaust. Don't know how to ...
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Engine leaning more after refueling?
Corolla with intermittent code saying System Too Lean (Bank 1) P0171 after refueling. First i noticed that there is slightly stronger fumes when i refuel then the code will illuminate ( Code not ...
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Corolla 2001 engine 1ZZ-FE with P0171 code
I bought this car about three months ago with 180K on it and tested for codes after taking for drive test with no problems. I drove it for about 200 miles after purchase no problems except not so ...
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Just changed catalytic converter and getting P0171 and P0430 codes
Vehicle is a 2004 Mercury Monterey, V6. Over the winter the injectors were replaced, and all 4 O2 sensors. It failed a state inspection, because the catalytic converter had been damaged, presumably ...
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P0171 code with high fuel trim
I have a 2001 Toyota Corolla.
Lately it has been throwing the P0171 code (system too lean). My short term fuel trim is normal at idle. +/- 5 % at idle and long term fuel trim is high at idle +18 %.
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Flashing overdrive light 2002 ford escape
2002 ford escape xlt-flashing overdrive light comes on after short period of driving. Comes on when approaching 50 mph? Or so...how do I fix it?
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What do you think of these spark plugs?
Still trying to diagnose an erratic positive fuel trims. Next step will be making sure that the lean condition i have is caused by less fuel delivered or weak spark not a vacuum leak. I pulled spark ...
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Is this Purge valve ticking sound normal? Youtube video
It is 2001 Corolla 1.8 engine. I'm still in the process of diagnosing an intermittent P0171 code. I posted a video in other post and user Carguy was very helpful and he mentioned that this ticking ...
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Lowest Fuel trims achieved only in the 1200-1500 RPM range?
This car still driving me crazy. I wrote here before about getting the code P0171 and some suggested a vacuum or exhaust leak. I sprayed some flammable connector cleaner around the intake manifold, ...
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Toyota Celica 7 VVTI 190 , P0171(too lean) and B0101(speed clock died intermittently) codes , pls help new purchase
Description below. pls help as I just bought this car.
Something interesting about the CEL, I think this info may help isolate the problem
It looks like the MAF may be new, but I will confirm that ...
