Catalist efficiency below threshold -Bank 1
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
error code o0125 ford explorer 2002
Trouble code P0420 means:Catalyst system efficiency below threshold
Thermostat malfunction.
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
bad vehicle speed sensor
Trouble code P0401 means: Exhaust Gas Recirculation Malfunction
Probably the vent control solenoid by the fuel tank.