DTC P2195 Acura
Rear Air Fuel Ratio (A F) Sensor (Bank 1, Sensor 1) Signal Stuck Lean
Rear Air Fuel Ratio (A F) Sensor (Bank 1, Sensor 1) Signal Stuck Lean
Description
The rear A F sensor (bank 1, sensor 1) output voltage is 3.48 V or more for at least 7 seconds. The execution time is once per driving cycle and DTCs P0134, P0135, P0171, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0627, P1172, P2237, P2238, P2243, P2245, P2251, P2252 are not active. NOTE: If DTC P2101, P2118, P2135, P2138, P2176, or a combination of P2122 and P2127, P2122 and P2138 or P2127 and P2138 is stored at the same time as DTC P2195, troubleshoot those DTCs first, then recheck for DTC P2195.
Cause and Solution
Dirty or Faulty MAF sensor IAT sensor (If equipped)
Loose A F sensor
Poor connections or loose terminals at the A F sensor (Sensor 1) and the PCM
Faulty A F sensor (Sensor 1)
PCM may need to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P2195
- Brand: Acura