Rear A/F Sensor Sensor 1 Bank 1 Signal Stuck Lean
Table of contents
P2195 HONDA Possible Causes
- Rear A/F Sensor Sensor 1 Bank 1 harness is open or shorted
- Rear A/F Sensor Sensor 1 Bank 1 electrical circuit poor connection
- Faulty Rear A/F Sensor Sensor 1 Bank 1
- Vacuum leak
- Low fuel pressure
How do I fix code P2195 HONDA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a Factory Service Bulletin for the 2003-2004 Honda Accord:
- 2003-2004 Honda Accord Factory Service Bulletin OBDII Code P2195
- Debris in the MAF sensor can also set this P2195 code.
- 1. Remove the MAF sensor, and check for debris (lint, bugs, foreign objects, etc.).
- 2. Open the air cleaner housing cover, remove the air cleaner element, and check it for damage.
- A damaged air cleaner element lets debris get into the MAF sensor. Replace the air cleaner element if needed.
- 3. Clean out the air cleaner housing. To keep from contaminating the MAF sensor, don’t use compressed air; use a vacuum instead.
- 4. Reinstall the air cleaner element, the housing cover, and the MAF sensor.
- 5. Clear the DTC.
Cost of diagnosing the P2195 HONDA code
The cost of diagnosing the P2195 HONDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
P2195 HONDA Description
Air-Fuel Ratio (A/F) sensor need to reach a minimum operating temperature of 1200 degrees F to produce an accurate voltage signal. The faster the air-fuel ratio sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the air-fuel ratio sensor. The ECM controls the air-fuel ratio sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.