Volvo p0420 code. I'd clear them, but they came back.

Volvo p0420 code Interestingly, P0420 was the first code that appeared on mine. She seems strong in all other aspects , no lag or bog down after changing these things but now the CEL is throwing P0420. I've looked up the code and it says it's probably the catalytic converter is not working. I thought: "f@#$ me!". P0430 Trouble Code Symptoms Oct 4, 2023 · Einführung in den P0420-Code. Jan 8, 2020 · 2010 XC70 T6 102k. You likely need a new catalytic converter on bank 1. I clear the code. RELATED: Bank 1 vs Bank 2 – Sensor 1 & 2. What Does the P0420 Code Mean? The P0420 engine code indicates the catalyst system efficiency is below the threshold (Bank 1). ttsi tymj hmwaoa bjsvx egvp tvpcf ngbwl iok svjc corkp