Originally Posted by maverickfhs
Originally Posted by GMBoy
Originally Posted by maverickfhs
Did a reset on the light, added berryman B12 and Italian tune up, so far light hasn't come back. Fingers crossed, will report back.
Thanks all.Â
Depending on when your car runs the 420/430 test - the light could come on in 50 miles or over 500. It will come back on, I seriously recommend the spark plug anti-fouler trick if the light does come back on. The P0420/0430 codes are calibrated to come in when the threshold of the cat efficiency drops 10%, that's not much at all.
Is it similar to this one?
Yes, those are the ones I use. You can also buy special made ones that won't require drilling out for more money if you rather do it w/o drilling.