P0420 UPDATE - listen to my mechanic telling my grandma what needs to be done next... - Toyota Yaris Forums

la_scanner · 04-03-2009, 09:18 PM

He gave us his word that the new Denso spark plugs would take care of everything. YOU ALL on here tell me, DUDE! IT'S THE O2 SENSOR. or possibly a shot Catalytic converter.

http://www.youtube.com/watch?v=rNDyhxXdaf4

Stored DTCs
DTC Description
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
Pending DTCs
DTC Description
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
Monitor Status
Monitor Name Monitor Icon Status
MIL Status MIL ON
Comprehensive Component Monitor CCM Complete
Misfire Monitor MIS Complete
Fuel System Monitor FUE Complete
Oxygen Sensor Monitor O2S Complete
Oxygen Sensor Heater Monitor HTR Complete
Catalyst Monitor CAT Complete
Heated Catalyst Monitor HCA Not Supported
EGR System Monitor EGR Not Supported
EVAP System Monitor EVA Complete
Secondary Air System Monitor AIR Not Supported
Air Conditioning (A/C) Refrigerant Monitor ACR Not Supported
Freeze Frame
Parameter Description Value
DTC for which Freeze Frame was Stored P0420
Fuel System 1 Status Closed Loop
Fuel System 2 Status Not Supported
Calculated LOAD Value 69.02 %
Engine Coolant Temp 181.40 °F
Short Term Fuel Trim - Bank 1 -2.34 %
Long Term Fuel Trim - Bank 1 2.34 %
Engine RPM 2888 rpm
Vehicle Speed Sensor 67.73 mph
Ignition Timing Advance #1 Cylinder 33.50 °
Intake Air Temperature 86.00 °F
Air Flow Rate Mass Air Flow Sensor 2.44 lb/min
Absolute Throttle Position 26.67 %
Time Since Engine Start 301 sec
Bank 1 - Sensor 1 Equivalence Ratio 0.96
Bank 1 - Sensor 1 O2S Voltage 3.06 V
Commanded Evaporative Purge 100.00 %
# Warm-ups since DTC Cleared 4
Distance since DTC Cleared 19.88 mi
Barometric Pressure 28.64 inHg
Bank 1 - Sensor 1 Equivalence Ratio 0.96
Bank 1 - Sensor 1 O2S Current -0.14 mA
Catalyst Temperature Bank 1 - Sensor 1 1367.96 °F
Catalyst Temperature Bank 1 - Sensor 2 1367.96 °F
Control Module Voltage 13.77 V
Absolute Load Value 43.14 %
Commanded Equivalence Ratio 1.03
Relative Throttle Position 7.84 %
Absolute Throttle Position B 61.18 %
Accelerator Pedal Position D 23.53 %
Accelerator Pedal Position E 39.22 %
Commanded Throttle Actuator 27.06 %
Time since DTC Cleared 1 hr 0 min

04-03-2009, 09:18 PM	#1
la_scanner Drives: 2007 toyota yaris Join Date: Mar 2009 Location: southern california Posts: 87	P0420 UPDATE - listen to my mechanic telling my grandma what needs to be done next... He gave us his word that the new Denso spark plugs would take care of everything. YOU ALL on here tell me, DUDE! IT'S THE O2 SENSOR. or possibly a shot Catalytic converter. http://www.youtube.com/watch?v=rNDyhxXdaf4 Stored DTCs DTC Description P0420 Catalyst System Efficiency Below Threshold (Bank 1) Pending DTCs DTC Description P0420 Catalyst System Efficiency Below Threshold (Bank 1) Monitor Status Monitor Name Monitor Icon Status MIL Status MIL ON Comprehensive Component Monitor CCM Complete Misfire Monitor MIS Complete Fuel System Monitor FUE Complete Oxygen Sensor Monitor O2S Complete Oxygen Sensor Heater Monitor HTR Complete Catalyst Monitor CAT Complete Heated Catalyst Monitor HCA Not Supported EGR System Monitor EGR Not Supported EVAP System Monitor EVA Complete Secondary Air System Monitor AIR Not Supported Air Conditioning (A/C) Refrigerant Monitor ACR Not Supported Freeze Frame Parameter Description Value DTC for which Freeze Frame was Stored P0420 Fuel System 1 Status Closed Loop Fuel System 2 Status Not Supported Calculated LOAD Value 69.02 % Engine Coolant Temp 181.40 °F Short Term Fuel Trim - Bank 1 -2.34 % Long Term Fuel Trim - Bank 1 2.34 % Engine RPM 2888 rpm Vehicle Speed Sensor 67.73 mph Ignition Timing Advance #1 Cylinder 33.50 ° Intake Air Temperature 86.00 °F Air Flow Rate Mass Air Flow Sensor 2.44 lb/min Absolute Throttle Position 26.67 % Time Since Engine Start 301 sec Bank 1 - Sensor 1 Equivalence Ratio 0.96 Bank 1 - Sensor 1 O2S Voltage 3.06 V Commanded Evaporative Purge 100.00 % # Warm-ups since DTC Cleared 4 Distance since DTC Cleared 19.88 mi Barometric Pressure 28.64 inHg Bank 1 - Sensor 1 Equivalence Ratio 0.96 Bank 1 - Sensor 1 O2S Current -0.14 mA Catalyst Temperature Bank 1 - Sensor 1 1367.96 °F Catalyst Temperature Bank 1 - Sensor 2 1367.96 °F Control Module Voltage 13.77 V Absolute Load Value 43.14 % Commanded Equivalence Ratio 1.03 Relative Throttle Position 7.84 % Absolute Throttle Position B 61.18 % Accelerator Pedal Position D 23.53 % Accelerator Pedal Position E 39.22 % Commanded Throttle Actuator 27.06 % Time since DTC Cleared 1 hr 0 min