Question about GMC Sierra 1500

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Vehicle will not run when put in gear and give it gas, idles fine. gives trouble codes P0171 & P0174.

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Tose are lean codes the 02 sensors are seeing a lean condition and likely its the mass air flow sensor or the intake hose to the engine is loose or cut.
contact me if you need more information please
www.aceautomotive1.com

Posted on Aug 02, 2008

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Im getting P0171 code- lean .


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Jan 27, 2016 | Cars & Trucks

3 Answers

Code p0171 and p0174


P0171 possible cheap fix

Feb 21, 2015 | 2002 GMC Sierra 1500

1 Answer

CHECK ENG LIGHT ON P0171,P0174,P1000,O2195.P2197 WHAT OR THESE CODES AND HOW CAN I FIX.


PO171 & PO174 are codes for fuel too lean. So is the clattering valves when you step on it. Sounds like you got some bad gas. Try filling up with a high octane gas and add a gas treatment for Ethanol which will help get some water out of the system. Good Luck

Feb 18, 2015 | 2004 Lincoln LS

1 Answer

Ford Taurus Engine Light is: P0171 & P0174. I am thinking a MAF Sensor


Could be a problem with the MAF sensor but if it is you should have a code for that too.
Other causes include low fuel pressure, and a vac leak or air leak in the intake hose to the MAF.
The codes mean the ECM can not make the injectors rich enough to make the O2 sensors switch back and forth.

Jul 29, 2012 | Ford Cars & Trucks

1 Answer

Ford windstar check engine light comes on after stopping when starting to get moving again shows p0171 & p0174 codes why??


P0171 indicates a lean condition. The most common cause of this is a defective mass air flow sensor. Also check if any vacuum leaks. P0174 OBD-II Trouble Code


Technical Description

System Too Lean (Bank 2)


What does that mean?

Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust.

Note: This DTC is very similar to P0171, and in fact your vehicle may show both codes at the same time.

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Thanks.


Dec 17, 2009 | 2002 Ford Windstar Cargo

1 Answer

P1507 P0171 & P0174 error codes on 02 windstar


p0171 indicates the system is running lean on bank 1,p0174 means the system is running to lean on bank 2 p1507 is an idle speed under run fault i'd suspect an air leak is the cause of your problem check air intake system for airleaks

Aug 06, 2009 | Ford Windstar Cars & Trucks

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