Unfortunately, my 2002 Quest is setting the dreaded P0420 code. I've been pricing out new converters (front, includes manifold, ahead of O2S2), which range from $200 to well over $700. Not all of them are CARB compliant. I don't live in CA, NY, or ME but my van has CA emissions. I've seen some advertised as compatible with federal and CA emissions but not CARB compliant. The last thing I want to do is replace the converter with one that still sets P0420 because it doesn't work with CA emissions. Has anyone dealt with this issue?