Acura P1172: Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Circuit Out of Range High
Is your scanner showing Acura P1172?
No worries. We'll show you what it means and how to deal with it.
Acura P1172: Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Circuit Out of Range High
OVERVIEWWhat Does The Acura P1172 Code Mean?
A malfunction is detected when the rear A/F sensor (bank 1, sensor 1) output voltage is 4.7 V or more. The execution time is continuous and the duration time is 7 seconds or more.
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
What Are The Potential Causes Of The Acura P1172 Code?
- Poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM
- Faulty A/F sensor (Sensor 1)
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> ZBN 234-5010 Oxygen O2 Sensor Upstream Front and Rear
>>> Acura Engine Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura P1172, DTCDECODE.
