Question about 1996 Volkswagen Jetta

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My 1996 jetta has a check engine light P0172 Bank 1 Too Rich. My local repair shop has replaced EGR valve and canister, Air Flow Sensor, PCV valve and valve cover, Engine Temp sensor, checked Fuel injector, Fuel Pump is putting out 36psi instead of 44psi, also there was some kind of vacuum module? This error returns after 53 to 86 miles consistently and before all engine readiness tests complete. Car will not pass inspection in this state. Any ideas?

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Try to clean the mass air flow sensor

Posted on May 26, 2010

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I need to know what code means 0172 and how much it cost


P0172 is "system too rich Bank 1"
There are many things that can cause this. The vehicle should be taken to a capable shop and be diagnosed and give you an estimate for repair.
P0172 System Too Rich Bank 1

Oct 13, 2015 | Cars & Trucks

1 Answer

My check engine light is pulling up code P0172 my read out says the problem is in bank one only


P0172 is bank 1 rich. May have a fuel injector stuck open or a bad o2 sensor.

Jul 25, 2015 | Cars & Trucks

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

2008 uplander code p0172 bank 1 fuel to rich


I recommend having a shop take a look at it. It could just be the O2 sensor, or you really could have an injector putting too much fuel in one cylinder. A mechanic would watch the data stream coming from the sensor on a scanner to judge if the sensor is working or not.

Jan 18, 2014 | Chevrolet Uplander Cars & Trucks

1 Answer

1996 mercury cougar V8 check engine light is on and reading P0172 system to rich (bank 1) how do i fix this


You have at least 10 possible causes

MAF Sensor--issues
Fuel System -with several problems
Evap System-problems

For the inexperienced & to save money,
before heading to the repair shop

Clean the MAF Sensor
Check,not replace,the Fuel Pressure regulator/sensor
The O2 Sensor may be contaminated or worn out

Apr 01, 2011 | Mercury Cougar Cars & Trucks

1 Answer

1996 dodge dakota v6 4v4 check engine


I could be wrong but it sounds like you need to put some attention towards the cat and the O2 sensors.

Mar 14, 2010 | 1996 Dodge Dakota

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

3 Answers

Check engine light (emission system service required) Help?!?!


There may be problem with the mass air flow sensor (very common with Volvo). This causes the fuel system to malfunction.

You may have noticed increased fuel consumption, loss of power and general 'lazyness'.

Better to take it to authorized Volvo service for a checkup/fix.

Jan 13, 2010 | 2000 Volvo S80

2 Answers

5 error cods on my 2002 Jetta GLS 1.8 Turbo Engine


P0420= Catalyst System Efficiency Below Threshold Bank 1
P0300=Random/Multiple Cylinder Misfire Detected
P0301=Cylinder 1 Misfire Detected
P0172=System Too Rich Bank 1
P2181=Cooling System Performance
you need to write these down,have someone clear the codes in the car,then go for short ride and recheck which if any code reappears.it's like domino's affect,one sensor can start a chain affect with the others.

Dec 09, 2009 | 1998 Volkswagen Jetta

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

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