L Series MIL Light

[JRMVVC]

Hi Guys

A while back i had a power surge that basically fried most of the electrics & set the alarm off & i couldnt stop it.

I took the sounder off & wrapped it in a blanket & put in a bucket in the garage, damn thing took 4 days to stop!

Anyway ive had the SCU box out & completely rebuilt by Technozen & sorted some of the wiring out that was in a bit of a mess behind the centre console & now using the car everyday again & it drives fine.

However ive got the MIL light on with the code P1402 displayed on the reader. I have done some googleicious on the code but wanted to ask some of you who are more in the know -

Will it do any harm to the car/engine if i just ignore the MIL light until the EGR, Decat & remap is done early next year or is it something i need to sort sooner?

Cheers
Johnny