Acura P1171: Fuel System Lean During Acceleration Detected
Is your scanner showing Acura P1171?
No worries. We'll show you what it means and how to deal with it.
Acura P1171: Fuel System Lean During Acceleration Detected
OVERVIEWWhat Does The Acura P1171 Code Mean?
Conditions for setting this DTC:
DTC P0131, P0132, P0133, P0134 and P1133 not set, ECT sensor more than 140ºF, engine running in Power Enrichment mode in closed loop, and the PCM detected the HO2S-11 signal indicated less than 400 mv for 5 seconds during the Fuel System Monitor test.
What Are The Potential Causes Of The Acura P1171 Code?
Below are some potential causes of this DTC:
- Air intake leaks in the engine, or in the PCV system (valve)
- Air leaks at the EGR gasket, or at the EGR valve diaphragm
- Base engine “mechanical” fault affecting one or more cylinders
- Exhaust leaks before or near where the front HO2S is mounted
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
>>> K&N Gasoline Fuel Filter: High Performance Fuel Filter, Premium Engine Protection
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura P1171, DTCDECODE.
