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Trouble code p0171 . truck runs and idles very poorly

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Po171 bank 1 fuel trim system lean,the problem with these is the intake manifold gasket it leaks vaccum. will make truck run bad, in the am may be even worse. replace the intake gasket that will solve your problem. ive done a few of them. hope this helps.

Posted on Jan 30, 2010

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Posted on Jan 02, 2017

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Im getting P0171 code- lean .


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Jan 27, 2016 | Cars & Trucks

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Keeps throwing up trouble codes p1506,p1151,p0302,p0171


Definition of Diagnostic Trouble Code P1506 Audi: Closed Throttle Position Switch Does Not Open/Short to Ground BMW: Idle-Speed Control Valve Opening Solenoid Control Circuit Signal High Ford: Idle Air Control Overspeed Error (see P0507) Jaguar: Idle Air Control System RPM Lower Than Expected - B Bank Kia: IAC Valve Opening Coil Voltage High Lincoln: Idle Air Control Overspeed Error (see P0507) Mazda: Idle Air Control Overspeed Error Mercury: Idle Air Control Overspeed Error (see P0507) Porsche: Throttle Jacking Unit Lower Mechanical Stop, Signal Implausible Volkswagen: Closed Throttle Position Switch Does Not Open/Short to Ground Volvo: IAC Valve Opening Signal
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Definition of Diagnostic Trouble Code P1151 Audi: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Jaguar: Lack of H02S-21 switch, sensor indicates lean Land Rover: Lambda control limit bank 2.Implausible signal/condition Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Subaru: HO2S-12 Heater Circuit High Input Toyota: Coolant Path Clog Up for Coolant Heat Storage System Volkswagen: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded
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Definition of Diagnostic Trouble Code P0302 Category: Powertrain Definition: Cylinder 2 Misfire DetectedNote: This definition of P0302 is applied to all manufacturers
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Definition of Diagnostic Trouble Code P0171 Category: Powertrain Definition: System Too Lean Bank 1Note: This definition of P0171 is applied to all manufacturers

Jun 17, 2015 | Cars & Trucks

3 Answers

Code p0171 and p0174


P0171 possible cheap fix

Feb 21, 2015 | 2002 GMC Sierra 1500

1 Answer

2001 GMC Yukon XL idles rough and lacks power code out P0171


P0171 is a lean Oxygen Sensor code. It is trying to tell you that your engine is running lean...not getting enough fuel, or getting too much air. That will cause the poor running and dying. This is most likely caused by a bad vacuum leak. The O2 heater code is probably caused by a failed O2 sensor heater. Sometimes it is caused by an open or short in the O2 sensor circuits, but most of the time it is the sensor itself.

Jan 22, 2013 | 2001 GMC Yukon XL

1 Answer

203 subaru impreza no power and code p0171.Any help?


I hope this info helps!



DTC P0172 - SYSTEM TOO RICH (BANK 1)

DTC DETECTING CONDITION:
Two consecutive driving cycles with fault

TROUBLE SYMPTOM:

  • Erroneous idling
  • Engine stalls.
  • Poor driving performance
CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode.

Step 1 - 3 110607012


Step 4 - 6 110602802


Step 7 110602801



Jul 28, 2011 | 2004 Subaru Impreza

1 Answer

I have five codes P2237 P2196 P2271 P0030 P0171 and a P2237 pending code on a 2005 elantra.The car runs poorly, bad gas mileage, sluggish with the check engine light on.Are all O2 sensors bad or maybe the...


P2237 P2196 P2271 P0030 P0171

These are all O2 sensor trouble codes, except P0171 which is a fuel trim code,

You have a bad 02 sensor - up stream - Bank 1 Sensor 1.

Replace it, then road test. The engine computer has a 'default' fuel trim it uses when an O2 sensor fails so it can protect the catalytic converter. If this hasn't been going on too long, good chance simply replacing the O2 sensor will remedy your problem.

Feb 06, 2011 | Hyundai Elantra Cars & Trucks

1 Answer

Poor idle dtc P1151, P1131,P0174, P0171. runs ok


Change plugs, and Mass Air Flow sensor. This should do the trick

Nov 29, 2009 | 2003 Ford Taurus

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