Question about 1997 Buick LeSabre

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My 97 buick stalls some time and wont start for while

My 97 buick i get a code that reads system to lean bank 1 what should i check the maf sensor gas cap fuel filter if the maf is there a way to test it without buying new one first i get code po171 system to lean bank 1

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Code po 171 system lean on bank one on 2002 buick lasabre

Posted on Mar 01, 2009

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Remove maf sensor and check for air filter debris on it, gently blow off debris taking care not to damamge the wires on the sensor. also check forvaccum leaks as this can cause a lean condition

Posted on Nov 30, 2008

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2000 toyota alvalon check engine light keeps coming on for code p0171 after replacing 02 oxygen sensor in bank 1


code p 0171 refers to system too lean bank 1===causes ---intake /exhaust leak---AIR system---MAF/VAF sensor/s---fuel pressure/ pump---injector/s---heated oxygen sensor (HO2S) the one in the exhaust manifold for bank 1 nearest the firewall

Apr 15, 2017 | Toyota Cars & Trucks

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PO174 AND PO171\


code p 0171 refers to system too lean bank1===causes ---intake /exhaust leaks--AIR system---MAF/VAF sensors --fuel pressure/pump--injector/S=== HO2S
code p 0174 refers to system too lean bank 2====causes intake /exhaust leak---fuel pressure/pump---injector/s---AIR system---hose connection/s
the fuel pressure is adequate
The HO2S is the heated oxygen sensor in the exhaust manifold /pipe before the cat converter
( is responsible for the fuel ratio settings )
you may have to pull the injectors to have them cleaned and tested
the maf/vaf sensor may have to be replaced as well

Apr 11, 2017 | 2004 Cadillac SRX

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Dakota p0171 p0174 taurus


code p0171 refers to system to lean bank 1==causes intake /exhaust leak--AIR system--MAP/MAF sensor--fuel pressure/pump--injectors--HO2s Have a fuel pressure test done on the fuel manifold to check for blocked filter/faulty pump/fuel pressure regulator faults
code p0174 refers to system to lean bank 2 --same causes including hose connection/s
code p0420 refers to catalytic converter system -bank 1 efficiency below threshold==causes catalytic converter--wiring--HO23. Check the cat converter is not cracked inside and the oxygen sensor is working.

Sep 06, 2013 | 2009 Citroen C8 2.0

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I HAVE A P0300 OBD CODE I DID A COMPRESSION TEST TO ENGINE AND IT PASS THE TEST,I DID CHECK EGR VALVE,CHANGE SPARK PLUGS,IGNITION WIRES, CAP AND ROTOR, I DID CHECK TPS SENSOR MAF SENSOR,FUEL PRESSURE,AND...


p 0300 code is for random misfires
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Apr 06, 2017 | 1997 Nissan Pathfinder

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Codes po171 and po174 0n a 2002 ford windstar\


It sounds like you running lean; too much air, not enough gas.
Go to these links to get some additional information:
http://www.obd-codes.com/p0171
http://www.obd-codes.com/p0174


  • P0171 System too Lean (Bank 1)
  • P0174 System too Lean (Bank 2)

    • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filtersmag-glass_10x10.gif can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
    • There could be a vacuum leak downstream of the MAF sensor.
    Possible Solutions

    Possible solutions include:

    • In the vast majority of cases, simply cleaning the MAF sensor does the trick. 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 if necessary
    • Check for a dirty fuel filter and proper fuel pressuremag-glass_10x10.gif

    Mar 02, 2011 | Ford Windstar Cars & Trucks

    3 Answers

    2000 jeep cherakee throwing p0171


    P0171 OBD-II Trouble Code Technical Description System Too Lean (Bank 1)

    What does that mean? Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.
    Note: This DTC is very similar to P0174 and in fact your vehicle may show both codes at the same time.

    Symptoms You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.

    Causes A code P0171 may mean that one or more of the following has happened:
    • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
    • There could be a vacuum leak downstream of the MAF sensor.

    Possible Solutions Possible solutions include:
    • In the vast majority of cases, simply cleaning the MAF sensor does the trick. 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 if necessary
    • Check for a dirty fuel filter and proper fuel pressure

    Hope this help.

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    2 Answers

    Check engine codes 97 ford exp v8 codes:0358 0171 0174


    P0171 and 174 System Too Lean
    Basically this means that an oxygen sensor in banks 1 and 2 detected a lean condition (too much oxygen in the exhaust).

    These codes may mean that one or more of the following has happened:
    •The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
    •There could be a vacuum leak downstream of the MAF sensor.

    •In the vast majority of cases, simply cleaning the MAF sensor does the trick. 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 if necessary
    •Check for a dirty fuel filter and proper fuel pressure

    P0358 Ignition Coil H Primary/Secondary Circuit Malfunction
    Code P0358 is for cylinder #8.

    Inspect the spark plug, coil, and coil boot on that cylinder for signs of damage. Replace as needed.

    If no problems are found with the components, check the wiring harness from the coil to the Powertrain Control Module (PCM).

    Potential Causes: Failed coil or boot
    Failed spark plug
    Harness problem

    Feb 09, 2010 | 1997 Ford Expedition

    1 Answer

    Codes


    Your sensors are reading correctly so leave them alone. What you have is a fuel delivery issue. Your MAF sensor is telling your engine to lean your fuel mixture. You need to remove and clean or replace (is better) the MAF. But first replace your PVC valve and clean your ERG valve.

    Jan 20, 2010 | 2000 Dodge Intrepid

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    Check Engine light is on my 1997 F150 with a small V-8. The tester returns codes P0171, P0172, P0174 and P0175. What does all this mean?


    those codes are for lean engine condition look for vac leaks at the back of engine to the pcv valve could hear hissing noise with engine running also check egr valve to be stuck open also when was last fuel filter changed? hope this helps .

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    1995 Ford Windstar LX 3.5L Error Codes?


    1. P0171-bank 1 lean, usually oxygen sensor
    2. P0174-bank 2 lean, usually oxygen sensor
    3. PO402-EGR ins. flow, Clean EGR exhaust tubes and replace sensor should fix this problem

    Dec 31, 2008 | 1995 Ford Windstar

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