Question about 2009 Chevrolet Impala LS

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Check engine light on

My check engine light came on and the code I got is p0172. What does this mean?

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  • Chevrolet Master
  • 796 Answers

Po172: system to rich(bank1) dirty manifold air sensor (maf), or a vacuum leak in system.

Posted on Apr 17, 2014

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Posted on Jan 02, 2017

nate6556
  • 103 Answers

SOURCE: 2004 colorado code p0172

check your gas cap. If you fill your gas while the vehicle is running, it will also cause your light to come on. Go to OReilys or Autozone and they will shut it off for free and tell you the problem

Posted on Jul 25, 2009

steve_e_uk
  • 1675 Answers

SOURCE: P0172 CODE, ENGINE LIGHT ON RUNS GOOD, THEN ENGINE

hi read this it will tell you all you need to know about it...hope this helps
http://repairpal.com/OBD-II-Code-P0172-and-P0175

Posted on Mar 26, 2010

  • 3640 Answers

SOURCE: 1996 chevy truck 5.7L has codes P0172, P0172 were

p0172 is--system to rich ( bank 1). an oxygen sensor on bank 1, detected a rich condition ( to little oxygen in exhaust ) v6-v8 - v10 engines, bank 1 is the side of the engine that has # 1 cylinder. causes could be a vacuum leak in a hose, a dirty or bad maf sensor, or fuel pressure or delivery problems.

Posted on Sep 22, 2010

  • 1565 Answers

SOURCE: Check engine light came on and is giving codes

check for a broken vacuum hose or vacuum fitting(s). you can use a can of spray carb cleaner. while running the engine use the spray to test hoses and fittings. give a little squirt to suspected areas. The idle speed will change when you find a vacuum leak. pay particular attention to the hose to the MAP sensor. There may be a problem with the elelctrical connection to the map sensor, or the sensor itself may be bad.

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Posted on Oct 22, 2010

airman_slack
  • 96 Answers

SOURCE: CODE P0172 ON 2008 CHEV MALIBU WHAT DOES THAT MEAN

First you disengage the Caps Lock. Then you read this article:
http://www.obd-codes.com/p0172

I would start with the easiest which would be the MAF sensor. Disconnect it and make sure the contacts are clean, then reconnect and make sure it is secure. Then clean the MAF.

Posted on Jul 11, 2012

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What does a digital trouble code P0172 mean?


System Too Rich (Bank 1) What does that mean? Basically this means that an oxygen sensor in bank 1 detected a rich condition (too little 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 P0175, 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 misfire. Causes A code P0172 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 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. There could be a fuel pressure or delivery problem Possible Solutions Possible solutions include: Inspect all vacuum and PCV hoses, replace if necessary Cleanthe MAF sensor. 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 fuel lines for cracks, leaks, or pinches Check the fuel pressure at the fuel rail Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced. Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)

Read more at: http://www.obd-codes.com/p0172
Copyright © OBD-Codes.com

May 07, 2015 | 2001 Mercury Villager

1 Answer

P0172 2003 trailblazer


P0172 states that the "bank 1" side of the engine is running too rich.
Here is a link explaining it in more detail and giving possible causes and solutions.


http://www.obd-codes.com/p0172

Apr 14, 2015 | 2003 Chevrolet TrailBlazer

1 Answer

P0172 code. Check Engine light on. Vehicle will not start now


What make and model car ? P0172 OBD II Trouble Code could be running so rich that it fouled the sparks . Pull out the spark plugs and see if there are wet with fuel and black, means that they are fouled out. Have to be cleaned or replaced . I don't know the make of vehicle , so I can only give approximation what mite have caused this , a fuel pressure regulator with a ruptured diaphragm leaking fuel into the intake manifold, leaking fuel injectors P0172 System Too Rich Bank 1

Dec 20, 2014 | Cars & Trucks

1 Answer

P0171 p0172


Here's code PO171.Here's code P0172.

May 08, 2013 | Ford Explorer Cars & Trucks

1 Answer

CODE P0172 ON 2008 CHEV MALIBU WHAT DOES THAT MEAN


First you disengage the Caps Lock. Then you read this article:
http://www.obd-codes.com/p0172

I would start with the easiest which would be the MAF sensor. Disconnect it and make sure the contacts are clean, then reconnect and make sure it is secure. Then clean the MAF.

Jul 11, 2012 | Chevrolet Malibu Cars & Trucks

1 Answer

Hyndai Santa Fe code P0172, P0175


fault codes stored in your car lead to check engine light on, you can get a code reader to clear it.elm327 can have a look, maybe can suit for your car.

Jun 29, 2012 | 2006 Hyundai Sonata

1 Answer

Speedometer sudenly stoppped working. now works intermittently. also shows check engine light. It is showing p0171 & p0172 codes. Lean and rich. seams like they contradict each other. occasionaly the...


P0171 indicates a lean condition. The most common cause of this is a defective mass air flow sensor. Also check if any vacuum leaks.Replace MAf sensor,if cleaning the MAF does not help.
OBD II P0172 Fuel System Too Rich (Bank 1).P0172 - System Too Rich (Bank 1) Essentially this DTC means that an oxygen sensor in bank 1 detected a rich condition.
When the code says that the Fuel System is "too rich," it means that the computer has been subtracting more and more fuel, which is called Long Term Fuel Trim. Ideally, the Long Term Fuel Trim should be close to 1 to 2 percent. When a code P0172 is set, it means that the Fuel Trim is anywhere from -15 percent to as low as -30 percent compensated. When this happens, the computer knows that there is an improper condition in the control of the Fuel System.


Thanks.

Feb 07, 2010 | 1996 Volvo 850

1 Answer

1996 chevy truck 5.7L has codes P0172, P0172 were


p0172 is--system to rich ( bank 1). an oxygen sensor on bank 1, detected a rich condition ( to little oxygen in exhaust ) v6-v8 - v10 engines, bank 1 is the side of the engine that has # 1 cylinder. causes could be a vacuum leak in a hose, a dirty or bad maf sensor, or fuel pressure or delivery problems.

Oct 29, 2009 | 1996 Chevrolet K1500

1 Answer

Check engine light obd2 code reads P0172


have you tried to goggle this?
Description of vehicle trouble code P0172. ... A code P0172 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty ...

Oct 13, 2009 | 2005 Volvo S40

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