2005 Chevrolet Equinox runs ruff. Showing a cdoe 171 running too lean bank 1 Possible causes?

Question 1

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I have two engine codes 171 and 174 engine is running fine how do i repair them

Well code 171 is telling you the fuel mixture is too lean for bank one and code 174 is too lean bank two.
So the most common cause is low fuel pressure.

Apr 12, 2015 • 2004 Chrysler Crossfire

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2005 expedition code p0171 and p0174

Code 171 is for the fuel system being too lean on bank one, and code 174 is for the same thing on bank two.
Generally the computer can not open the injectors long enough to make the system go rich.
The most common cause is low fuel pressure or a clogged fuel filter.

Aug 26, 2012 • 2005 Ford Expedition

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Codes 171 174 2002 gmc sierra 5.3

Try some injector cleaner in order to see if the lean condition improves. Lean conditions can sometimes be caused by o2 sensors or other sensors that are not within specifications.

Jul 08, 2010 • 2000 GMC Sierra

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1answer

Im getting codes 171, 174, 300, 316 from an OBD II for my 2005 Ford Taurus. What could be causing these?

171 system to lean bank one, 174 to lean bank 2, 300 multiple miss fire,316 crank sensor defective. Does it run rough? Replace crank sensor first.

Feb 07, 2010 • 2005 Ford Taurus

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99 savana van, with code 171, and 174. System running to lean bank 1, and 2. what would cause that. The van runs real ruff on the fisrt take off after every start up, and when its idealing and you punch...

possible maf sensor dirty or needs to be replaced try cleaning the maf with a brake cleaner also a vacuum leak will cause same problem

Jan 21, 2010 • 1999 GMC Savana

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1answer

98 chevy lumina. Code 113, 102, 171. runs then

the code 113 is intake air temp cicuit, high input.
the code 102 is mass air flow volume air flow circuit, low input.
the code 171 is system too lean (bank 1)
I sure hope this helps you out. Dont sound like anything too major though

Sep 23, 2009 • Chevrolet Lumina Cars & Trucks

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1answer

Check engine light on computer codes 171 174 171-HEGO sensor unable of snitch cylinder bank #1 fuel system at adaptive limit (1990 on) code 174 hego sensor snitching too slow, cylinder bank #1 (1990)

switch, we run off snitches. 171 174 banks 1 & 2 Lean. Most likely cause are Upper Intake Manifold Gaskets, failed seals. It's not 1990 on. It's 1996 and on OBD2.

Aug 03, 2009 • 2003 Ford Explorer Sport

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Lean bank 1 code 0171 running to lean i change the 02 sensor and maf sensor and check engine light comes back on

Check for a lower intake leak somewhere air is getting in on 1,2,3. Check for leaking vaccum hoses also.

Mar 23, 2009 • 2005 Chevrolet Equinox

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2003 chevy silverado codes

Most likely cause is the intake manifold gasket

Feb 03, 2009 • 2003 Chevrolet Silverado 1500

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1answer

Codes #171 & 174

first check out for o2 sensor if its faulty this can show up.but if its proper.Evaporative emission control system leak very small 171 System too lean (bank 1) 174 System too lean (bank 2)

Jan 05, 2009 • 2004 Ford F150

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Vacuum leak on that bank due to damaged/loose connection of a vacuum hose to sensors or intake gasket on that side being the worst.

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Could be your fuel and air mixer moduel. Hope this helps.

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The mass air flow sensor could be dirty, or the oxygen sensor, the one closer to the exhaust manifold ( referred to as the upstream sensor) may be faulty. It's just screwed into the exhaust pipe, some are hard to get at.
The mass air flow sensor is in that black air intake tube that goes from the the air breather to the throttle body. The best thing to use to clean it, is a spray can of electronic cleaner.
If that doesn't cure the problem, then change the 02 sensor (oxygen sensor).

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2005 Chevrolet Equinox runs ruff. Showing a cdoe 171 running too lean bank 1 Possible causes?

3 Answers

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I have two engine codes 171 and 174 engine is running fine how do i repair them

2005 expedition code p0171 and p0174

Codes 171 174 2002 gmc sierra 5.3

Im getting codes 171, 174, 300, 316 from an OBD II for my 2005 Ford Taurus. What could be causing these?

99 savana van, with code 171, and 174. System running to lean bank 1, and 2. what would cause that. The van runs real ruff on the fisrt take off after every start up, and when its idealing and you punch...

98 chevy lumina. Code 113, 102, 171. runs then

Check engine light on computer codes 171 174 171-HEGO sensor unable of snitch cylinder bank #1 fuel system at adaptive limit (1990 on) code 174 hego sensor snitching too slow, cylinder bank #1 (1990)

Lean bank 1 code 0171 running to lean i change the 02 sensor and maf sensor and check engine light comes back on

2003 chevy silverado codes

Codes #171 & 174

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2005 Equinox

I have two engine codes 171 and 174 engine is running fine how do i repair them

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2005 Chevrolet Equinox runs ruff. Showing a cdoe 171 running too lean bank 1 Possible causes?

3 Answers

Anonymous

Anonymous

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

I have two engine codes 171 and 174 engine is running fine how do i repair them

2005 expedition code p0171 and p0174

Codes 171 174 2002 gmc sierra 5.3

Im getting codes 171, 174, 300, 316 from an OBD II for my 2005 Ford Taurus. What could be causing these?

99 savana van, with code 171, and 174. System running to lean bank 1, and 2. what would cause that. The van runs real ruff on the fisrt take off after every start up, and when its idealing and you punch...

98 chevy lumina. Code 113, 102, 171. runs then

Check engine light on computer codes 171 174 171-HEGO sensor unable of snitch cylinder bank #1 fuel system at adaptive limit (1990 on) code 174 hego sensor snitching too slow, cylinder bank #1 (1990)

Lean bank 1 code 0171 running to lean i change the 02 sensor and maf sensor and check engine light comes back on

2003 chevy silverado codes

Codes #171 & 174

Not finding what you are looking for?

2005 Equinox

I have two engine codes 171 and 174 engine is running fine how do i repair them

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