Question about 2005 Ford Focus

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Engine code p0171 car stalls when comes to a full stop but will start right back up

ODB code P0171 system to lean on bank 1 was told to change the O2 sensor. Will that take care of the problem?

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Mine did the same thing, it turned out to be a vaccuum leak. $170 fixed it. I may have caused it by trying to use my car as a hovercraft to get out of a trapped position. Stomping it too hard in an emergency.

Posted on Dec 31, 2012

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Posted on Jan 02, 2017

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SOURCE: Code #P0171 & code #P0174

The most common problem on a Ford with these codes is deteriorated PCV hoses. Check the hoses from the PCV valve to the intake manifold. Pay special attention to the rubber elbows. They often crack on the inside curve and the crack is hard to see.

Posted on May 22, 2008

  • 195 Answers

SOURCE: check engine light on

Generally when these codes appear it is due to insufficient fuel pressure. Test your fuel pump to ensure it is within specs. Have you changed your fuel filter?

Posted on Jan 15, 2009

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SOURCE: Ford Windstar 1996 Trouble Codes P0171, P0141, P0161, and P0174

Bank one is toward the front of the vehicle. Sounds like the heated oxygen sensors have gone bad. The Oxygen Sensors are located in the exhaust pipe and require a special socket to remove and replace.

Posted on Jan 16, 2009

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SOURCE: Diagnostic Codes p0171 bank 1, and p0174 bank 2 (too lean)

Those codes are for the oxygen sensors, lean fuel mixture on both banks. Change them, problem with stalling and rough idle should go away.

Posted on Apr 23, 2009

  • 1565 Answers

SOURCE: Codes P0171 & PO174 bank

http://leckemby.net/windstar/windstar01.html

Posted on Oct 09, 2010

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I have a PO171 code on my 1999 Jeep grand cherakee larado can You tell me how to fix it, Thank You.


  • Dale, code P0171 fuel system too lean
  • Possible causes
  • change fuel filter first, if it has not been done recently
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
FUEL PUMP MODULE
O2 SENSOR
O2 SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
O2 SENSOR HEATER OPERATION
TPS VOLTAGE GREATER THAN 0.92 VOLTS WITH THROTTLE CLOSED
TP SENSOR SWEEP
MAP SENSOR OPERATION
ECT SENSOR OPERATION
ENGINE MECHANICAL PROBLEM
FUEL FILTER/PRESSURE REGULATOR (HIGH)
PCM
Check the attached links,
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2000 Jeep Grand Cherokee p0171

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2000 Lincoln Navigator - few days ago started idling very rough when truck is at a stop or in park. Service Engine Light came right around time I noticed that it was idling rough when stopped. Following...


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I have a 98 Ford Contour and these codes. - P0708, P0171, P0442


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Error code 01710 car stalls and will not start for a few minutes


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p0171 and p0174 both banks lean

Feb 27, 2011 | 2001 Hyundai Santa Fe

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Engine code p0171-system too lean bank 1 engine code p0116 -engine coolent temp ckt range/perf What do these codes mean?


P0171....System too Lean (Bank 1)


P0116....Engine Coolant Temperature Circuit Range/Performance Problem

right it means you have a faulty O2 sensor and i would imagine the one after the cat ,and the engine is running cold so its either a problem with no thermostat fitted or outside ambient temperature too cold and you will need to put a piece of cardboard in front of radiator to stop the air flow and the wind chill factor

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CODE P0171 KEEPS ON COMING BACK ON,REPLACE O2 AND MAP


Hi Jonah,

I have the same problem and it only propped up after i had my exhaust manifold repaired, do you think the mechanic didnt do the weld it right?

James
2001 Saturn L200

Apr 27, 2010 | 2000 Saturn SL

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Codes P0171, P0174, P0440


This is usually an oxygen sensor, replace the O2 sensor located above the catalytic converter before replacing the evaporator purge canister.

Dec 29, 2009 | 2000 Chevrolet Silverado

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98 chevy s-10 codes p0131, p0171, and p1133


Your O2 sensor is starting to go bad .recomend replacement before it gets worse

Sep 24, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

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CHECK ENGINE CODE P0171


there is only one bank on a pt cruiser and yes it could be a fuel pump or a vacuum leak

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Codes 1133-0131-0171-0300


p1133 - o2 sensor, Insufficiant Switching, Bank 1 Sensor 1.
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I would be looking at the front passenger side oxygen sensor for issues. It may be bad, it may not be plugged in, bad wiring at harness.

The random misfire may be symptomatic of the o2 sensor problem.

Mar 17, 2009 | 2002 Chevrolet Silverado 1500

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