Mill light question

My engine management light come on this evening, never had this happen before and have no new mods on the car recently.

I plugged in my fault reader and it threw P0420 which is

http://www.permoveo.ltd.uk/tabid/122/OBD-Error-Code/P0420/Diagnostics/Lotus/Default.aspx

Now my question is do you think I have something to worry about or should I try resetting it?

P.S. Spec is 260 CN upgrade, forge, trd, 8x22 2Bular, but all this has been on the car for ages.

Reset and see if it pops up again…

I’m with Frank on this, not uncommon reset and forget, if it does it all the time you might have an issue

Cheers guys will give it a go as see how i get on.

just a question - when you did the 260 upgrade did you do the fuel pump as well ?

It’s in with the CN conversion …Lotus wouldn’t release the ECU,s without it .

Yep thats right, thanks John.