2000 Subaru Outback "dtc p0420" Questions

...P0420 code is combined with other codes, try fixing the other codes first. Trouble Code: P0442Evaporative Emission Control System Leak Detected (small leak) Possible Causes:Check any other DTC on ...

...DTC P0420 code will not clear. I replaced the rear O2 sensor and the CEL is still on. I used the scan tool to clear the code but it will not clear. that code is saying you have a problem with that ...

...DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) 1. OUTLINE OF DIAGNOSIS Detect the deterioration of catalyst function. Though the front oxygen sensor output would change slowly with a ...

...DTC P0420: Catalyst System Low Efficiency Bank 1 DTC P0430: Catalyst System Low Efficiency Bank 2 bank 1 means , that bank that contains cylinder #1 where is cylinder #1 it on all V engines, that ...

...DTC P0420 or P0430 Diagnostic Instructions * Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See: Testing and Inspection\Initial Inspection and Diagnostic ...

...P0420 DTC persists after new Cat install Code persists after new Cat install Did you reset the code? Try some of this to clean the fouling in the rest of the system, Dura Lube Severe Catalytic & ...

...P0420 Is related to a faulty rear 02sensor. P1518 PCM & TAC module communication detected missing or invalid serial data. If TAC related repair has been done, clear DTC & recheck system. It ...

...DTC code P0420 (bank 1) will this correct itself after changing the EGR valve or do I have to change the O2 sensor? Thanks, Paul The 420 will not go away with egr replacement. it means the computer ...

whats wrong with my truck P0420 P0420 P0420 dtc indicates catalytic convertor below threshold bank 1. You will need to h ave your convertor s checked and replaced

...P0420. • DTC P0171 Fuel Trim System Lean Bank 1 • DTC P0174 Fuel Trim System Lean Bank 2 . The engine control module (ECM) controls the air/fuel metering system in order to provide the best possible ...