Question about 2005 Jeep Grand Cherokee

Open Question

How to fix 1999 ford explorer dtc codes po172 and po175

My 1999 ford explorer dtc codes po172 system to rich bank 1 and po175 system rich bank 2. How do I fix this.

Posted by on

4 Suggested Answers

Pops65Pony
  • 136 Answers

SOURCE: 2002 6 cylinder 3.o engine Ford Ranger. Cold start

Changed the air filter lately? Possibly defective O2 sensors, but I doubt it. If air filter and intake are clear, I'd check barometric pressure sensor and mass air flow sensors. Get a Haynes or Chilton's for $25 at Pep Boys for instructions on testing these componenets

Posted on Oct 14, 2009

  • 2 Answers

SOURCE: dtc codes p0155 & p0051

I had the same problem and found out I was sold the wrong sensor, my 4.0 has four, they are all different, when you install a new sensor, you must make sure you clear the trouble code before you start the engine, ignition on engine off, that should do it, it worked for me, also if you have your own scanner and can erase the codes yourself, the wrong 02 sensor will turn engine light on with cold start, then after I erased the code it would stay off all day until the next cold start, thats when I found out my new 02 sensor was for bank 1 sensor 2, and not bank 2 sensor 1, hope this helps

Posted on Jan 19, 2009

  • 14 Answers

SOURCE: Want to know what PO172 System too rich bank 1

it means your cars computer is pumping too muchgas into your motor because it thinks the engine is either running lean possibly due to faulty o2 sensors or that the coolant temp sensor is giving false readings and the ecm thinks the car is still too cold.

Posted on Mar 02, 2009

  • 162 Answers

SOURCE: Code P0172, systen too rich Bank 1

Look into the MAP sensor ( manifold absolute pressure sensor)

If you have a code reader you can read freeze frame data.

Posted on Apr 04, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

It's turning off engine shaking


code p0171 refers to system too lean bank 1===causes ---intake /exhaust manifold leak---ARI system--MAF/VAF sensor--fuel pressure /pump---injector/s---ECM
code po172 refers to system too rich bank 1===causes --intake blocked---EVAP canister purge valve---fuel pressure---EGR system---injector/s---HO2S

Jan 06, 2014 | 1998 Ford Taurus

1 Answer

I have a 1997 1500 with a 5.0 Im getting codes po143 po172 po175 and po300. Im not sure what the cause could be.


Code 300 is for a random miss.
172 and 175 are for the same problem - 172 is for a rich fuel mixture bank one and 175 is for the fuel mixture too rich on bank two.
Code 143 is for a rich mixture for sensor number 3.
All of the codes could be connected to a leaking injector or other fuel problem. Very seldom are all of the O2 sensors faulty at the same time.

Feb 22, 2013 | Cars & Trucks

1 Answer

Codes po172 and po175 too rich mixture


easy one.. when ever you have codes and want to know what they are..visit.. www.bestdirectorysolutions.com on the home page.. left side, scroll down and click on trouble codes... good luck sir

Mar 16, 2012 | 2004 Ford Explorer

2 Answers

P0175 CODE ON MY 1999 FORD TAURUS


System adaptive fuel to rich (bank 2)
Try some concentrated fuel injector cleaner. May need a tune up.

Mar 01, 2011 | 1999 Ford Taurus

2 Answers

Mustang gt code po175 how to fix it


P0175 : That means your car is running rich in Bank2.

Could be your 02 sensor or your MAF sensor.

Dec 24, 2010 | 1996 Ford Mustang

1 Answer

Ford f150 2001 code p0172 and code p0174


CODE PO172 - SYSTEM ADAPTIVE FUEL TOO RICH BANK 1 POSSIBLE CAUSE EVAP VAPOR RECOVERY SYSTEM FAILURE MAY BE PULLING VACUUM.FUEL PRESSURE REGULATOR FAULTY.HO2S ELEMENT CONTAMINATED.LEAKING FUEL INJECTORS. CODE PO174 - FUEL SYSTEM TOO LEAN CYLINDER BANK 2. POSSIBLE CAUSE EXHAUST LEAKS BEFORE OR NEAR THE HO2S,WEAK FUEL PUMP.RESTRICTED FUEL INJECTORS, LEAKING EGR VALVE GASKET OR DIAPHRAGM.MAF SENSOR DIRTY CAUSING PCM TO UNDERESTIMATE AIRFLOW.

Aug 25, 2010 | 1997 Ford F150 Regular Cab

1 Answer

2002 6 cylinder 3.o engine Ford Ranger. Cold start problem. Bank 1 code PO172 and Bank 2 code PO175. System to rich. Where to start checking.


Changed the air filter lately? Possibly defective O2 sensors, but I doubt it. If air filter and intake are clear, I'd check barometric pressure sensor and mass air flow sensors. Get a Haynes or Chilton's for $25 at Pep Boys for instructions on testing these componenets

Oct 14, 2009 | 2002 Ford Ranger Regular Cab

4 Answers

Check Engine light is on my 1997 F150 with a small V-8. The tester returns codes P0171, P0172, P0174 and P0175. What does all this mean?


those codes are for lean engine condition look for vac leaks at the back of engine to the pcv valve could hear hissing noise with engine running also check egr valve to be stuck open also when was last fuel filter changed? hope this helps .

Sep 16, 2009 | 1997 Ford F150 Regular Cab

1 Answer

Want to know what PO172 System too rich bank 1 means and PO175 System too rich bank 2 means. These are fault codes from an emissions test I had done on my Dodge avenger and it failed


it means your cars computer is pumping too muchgas into your motor because it thinks the engine is either running lean possibly due to faulty o2 sensors or that the coolant temp sensor is giving false readings and the ecm thinks the car is still too cold.

Mar 02, 2009 | 1998 Dodge Avenger

Not finding what you are looking for?
2005 Jeep Grand Cherokee Logo

Related Topics:

574 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

64286 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...