What is the Honda Check Emission System error message and how to fix it.


Check Emission System Causes:

Catalyst Problem Codes
Example Code: P0420 code means that the catalyst system efficiency of your car is below threshold (Bank 1)
Failed catalytic converter
Faulty oxygen sensor
Wiring, such as damaged wiring and loose connections
Exhaust leak

EVAP Problem Codes
Example Code: P1457 Honda Evaporative Emissions Control System Leakage EVAP Canister System
Bad Gas Cap
EVAP Leak
Evap Purge Valve
EVAP Charcoal Canister

Engine Problem Codes
Example Code: P0101 OBDII Trouble Code: Mass Airflow (MAF) Circuit Operating Range or Performance Problem
Misfire
Air Fuel Ratio