Air/Fuel Ratio Sensor 1 Bank 1 Circuit Range/Performance Problem
Table of contents
P2A00 HONDA Possible Causes
- Faulty Air/Fuel Ratio Sensor 1 Bank 1
- Air/Fuel Ratio Sensor 1 Bank 1 harness is open or shorted
- Air/Fuel Ratio Sensor 1 Bank 1 circuit poor electrical connection
How do I fix code P2A00 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.
Cost of diagnosing the P2A00 HONDA code
The cost of diagnosing the P2A00 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)
P2A00 HONDA Description
The Air/Fuel ratio (A/F) sensor has a linear signal output in relation to the oxygen concentration. The Powertrain Control Module (PCM) computes the air/fuel ratio from A/F sensor output voltage and uses the fuel feedback control to improve exhaust emissions. The PCM monitors A/F sensor output voltage during deceleration with the throttle fully closed, and if the output voltage deviates greatly from normal oxygen concentration levels, it detects a malfunction and stores a Diagnostic Trouble Code (DTC).