Question about 2001 Volkswagen Jetta TDI

1 Answer

2001 Jetta 1.8T 172 engine code

I have a 2001 Jetta 1.8t with an enige code of 172, running rich. Anyone had this problem, I've been told it could be the O2 sensor or the mass air flow sensor. Any ideas.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Volkswagen Master
  • 64,034 Answers

You may just have a dirty MAF sensor, spray brake clean through the sensor and clear the code, run it a few days to see if the code comes back.

Posted on Sep 16, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I haVE AN AUDI 2001 TURBO 1.8 ePC LIGHT IS ON WHAT DO THAT MEANS


You really need to run the Diagnostic programme to get the fault code in order to pinpoint the faulty part. See here for possible fault -
http://www.audizine.com/forum/showthread.php/104097-B6-A4-1-8T-Engine-Speed-Sensor-%28G28%29-Replacement

Sep 03, 2014 | 2001 Audi A4

1 Answer

Code po172, po156


Have you had the O2 sensors checked ? Code 172 is for a rich signal from bank one sensor one and code 156 is for a problem with bank two sensor two which is after the catalytic converter.
One of the injectors could be flooding a cylinder, or you could have a faulty sensor.

Jan 18, 2014 | Ford Windstar Cars & Trucks

1 Answer

2006 chevy Avalanche check engine code 172 & 175


the temperature sensor can cause a rich mixture at the wrong time by providing a false reading of cold engine

Sep 28, 2013 | 2006 Chevrolet Avalanche

1 Answer

Find solution for tdc p0172 on 2001 kia magentis


If upstream sensors are over 100,000 miles
on any of your vehicles change them

Leave the downsteam ones alone

The 172 is rich ,so maybe you have a
vacuum leak & lean condition & the computer
drove fuel trim rich & set the 172

All that can be Googled as well as any codes

Mar 10, 2013 | Cars & Trucks

1 Answer

Engine light on with restricted performance. I've scoped the issue and get a reading of PO 172. I've cleaned sensor and changed air filter. Still get restricted performance and check engine report....


this code is a rich code your car is burning too rich...meaning not enough air is mixing with the fuel...make sure you check all lines insuring that bank one doesnt have a clogged vacuum line etc..Bank one is where cyllllinder one is located or usually if your facing the bell housing while sitting in the car it will be the right side of the engine...But I would start with hoses,then go from there...

Sep 01, 2011 | 1996 Jaguar Vanden Plas

2 Answers

What does the code 172 mean for a 2005 GMC Canyon?


it means that your fuel is running too rich,and needs more oxygen for a cleaner burn. i think that your oxygen sesor may be faulty,but have autozone run the trouble codes for you,and see what exact part is bad.

May 02, 2010 | 2005 GMC Canyon

1 Answer

Getting a code 172 rich fuel cond 1.9 liter it has had a new cat and both o2 sensors it has had a map sensor and the evap purge valve checks out. No external vac leaks are detected it has had new plugs and...


you might want to check the intake for leaks-let the engine run-while running spray some brake cleaner around the intake-if the engine boggs down or dies that means your intake gasket is leaking and needs replaced-this is very common

Feb 17, 2010 | 2001 Saturn SC

1 Answer

2001 E250 4.2 codes po 171 174 172 175


P171 Lean to bank one
P172 Rich to bank one
P174 Lean to bank two
P175 Rich to bank two.

These are conflicting codes. I would suspect that you have a bad MAF sensor. take it out and try and clean it before you replace it. It could also be a bad O2 sensor. But unlikely that both sides went bad at the same time.

Dec 20, 2009 | 2001 Ford Econoline

3 Answers

Check Engine Light on


Most likely Mass Air Flow Sensor. Could be oxygen sensors also but the mass air flow is more common

Jan 07, 2009 | 2001 Volkswagen Jetta TDI

3 Answers

Mass Air Flow Sensor, oxygen sensor and coil plugs


look for vacuum leaks the last 4 codes are lean codes
primarily lookm at the pcv hose noturious for collapsing

Sep 16, 2008 | 2000 Ford Expedition

Not finding what you are looking for?
2001 Volkswagen Jetta TDI Logo

Related Topics:

551 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

yadayada
yadayada

Level 3 Expert

63990 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...