+18 2000 Lexus Gs300 Check Engine Light Code P0430 References. Web i got it checked and it comes up with a p0420 code. Emissions control system vent malfunction.
This code points to a failing catalytic converter (for bank2). I connected a diagnostics tester and have codes p0420 & p0430 which is telling me both front cats aren't working well. Eric eric, automotive repair shop manager category:
