On the way home today, the light went off.
It means that the secondary O2 sensor has "awakened" indicating poor CAT "scrubbing".bfivelover said:Had my car serviced today. They said the code was: "P1420 NOX CATALYZER PERFORMANCE". If it comes on again, they said the catalytic converter will need to be replaced at a cost of $1277.21. Can someone explain what the code means?
Thanks John. No drivability problems, in fact I'm getting great mileage, even in the cold temps. Tune-up isn't due for 8,000 miles or so. I'm hoping nothing needs replacing till at least August when I'll have the car paid off and will have an extra $400 a month to play with.Insightful Trekker said:As long as there are no other codes concurrent, no drivability problems (misfire, surging) and a tune-up isn't overdue once it comes on routinely its time for CAT replacement.
HTH !![]()
My car 90090 miles has the light coming on too. My OBDII tool says P0420 (or P0240). Something about the bank 1 converter emmissions are out of spec. Have you determined what your cause is?bfivelover said:Has anyone else experienced the "Check engine" light in the 90,000-92,000 mile range. Mine came on yesterday on my way to work. I already had a scheduled maintainance appointment on Thursday, and since Honda said it should be okay till then, and Hagerstown Honda seems to know their stuff, I'm waiting till then. Any thoughts?
Only what I stated in my previous post, that Honda says the Cat Converter will need replacing if the light comes on again.Djhdano said:bfivelover said:My car 90090 miles has the light coming on too. My OBDII tool says P0420 (or P0240). Something about the bank 1 converter emmissions are out of spec. Have you determined what your cause is?
What if I do not replace the converter? We do not have emissions testing here. Will the car run ok or does the second sensor do more than just control the engine light? I would rather not spend $1000 on something that is not a must to have!bfivelover said:Djhdano said:Only what I stated in my previous post, that Honda says the Cat Converter will need replacing if the light comes on again.bfivelover said:My car 90090 miles has the light coming on too. My OBDII tool says P0420 (or P0240). Something about the bank 1 converter emmissions are out of spec. Have you determined what your cause is?
bfivelover said:Djhdano said:Only what I stated in my previous post, that Honda says the Cat Converter will need replacing if the light comes on again.bfivelover said:My car 90090 miles has the light coming on too. My OBDII tool says P0420 (or P0240). Something about the bank 1 converter emmissions are out of spec. Have you determined what your cause is?