Q: I am getting the code p0172 and I need to know what can I do to fix it?

asked by on

What do I have to do to fix a problem in my Colorado when I am getting the code p0172

My car has 147000 miles.
My car has an automatic transmission.

Hi there. Are there any other codes stored? A P0172 (system rich detected) is stored when the O2 sensor detects a lower than specification level of oxygen in the exhaust. There could be many reasons this is occurring from weak spark, excessive fuel pressure, leaking injectors, failing airflow meter, failing map sensor, to a stuck O2 sensor; the list can go on into mechanical failures as well including the variable valve timing. Data from a capable scan tool would be very helpful to compare to specifications. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a check engine light inspection.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I am getting the code p0172 and I need to know what can I do to fix it?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Replaced front suspension got aligned new tires , steering shudders at low turning speed still chevy silverado 2004 1500

Hi Houston. Thanks for contacting us today. Sometimes when multiple components are replaced, and adjustments made, it will highlight other parts that were not replaced that might be loose or wearing out. Based on what you've indicated in your question,...

Q: Q: Horn stopped working.

The horn is powered by the fuse you changed out. The control is the horn button and it goes through the steering wheel and clock spring behind the steering wheel. The horn relay gets power from the fuse and control...

Q: Ball joints and tie rod replacement

The front end suspension of a modern car has to be "tight" in order to be safe, work properly and, indeed, even to be aligned properly. If the ball joints and tie rod ends are loose, that means your tires...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.