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

asked by on December 14, 2016

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

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

My transmission has a shifting issue

If you are having issues with the transmission suddenly going to neutral instead of the next gear and also losing reverse or erratic gear engagement then you most likely have debri getting into the solenoid and valve body solenoids. You...

Sir my car is Chevrolet aveo uva, some times car engine is off when break suddenly

Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate and eventually stall. The idle air control valve is a small valve on the engine's intake system that...

My brake fluid light is on and won't go off

The brake fluid sensor in installed in the brake master cylinder. Try to remove the brake fluid sensor connector. The sensor is in the center of the master cylinder reservoir. If the light goes out then replace the sensor and...

Related articles

Top 10 Scenic Drives in Colorado
Colorado is a state so rich in natural beauty with its mix of desert terrain and richly forested mountains. Regardless of the season, there is something breathtaking to see. Snow-capped peaks provide a picturesque background in winter, summer is ideal...
How to Prepare for the Colorado Driver’s Written Test
You You are almost ready to get behind the wheel and to learn to drive, but there’s still one thing that you need to do. You have to get your driver’s permit by taking and passing the written exam given...
Top 10 Scenic Drives in Colorado
Colorado is a state so rich in natural beauty with its mix of desert terrain and richly forested mountains. Regardless of the season, there is something breathtaking to see. Snow-capped peaks provide a picturesque background in winter, summer is ideal...