Question about 2005 Jeep Grand Cherokee
My 1999 ford explorer dtc codes po172 system to rich bank 1 and po175 system rich bank 2. How do I fix this.
a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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
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
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
Tips for a great answer:
Nov 18, 2016 | Cars & Trucks
Jan 06, 2014 | 1998 Ford Taurus
Feb 22, 2013 | Cars & Trucks
Oct 03, 2011 | 2005 Dodge Dakota
Oct 14, 2009 | 2002 Ford Ranger Regular Cab
Sep 16, 2009 | 1997 Ford F150 Regular Cab
Mar 02, 2009 | 1998 Dodge Avenger
582 people viewed this question
Usually answered in minutes!