Fault code reader

 Evening all. I’ve today bought myself a 1994 1.8 Roadster. [:D] It’s my 3rd MX5, 1st one sold as wasn’t practical at the time and 2nd one sold for a Golf convertible (I’m into aircooled VW’s and thought i’d get a VW daily. Bad mistake!) Anyway, i got my latest, my 1st 1.8, today and it’s got quite a bad misfire. All i was wondering was where to get fault code tester from? I know it’s just an LED but i don’t have time to make one up as i’m back to work Thursday night and i remember buying one from somewhere for my last car. If anyone has any ideas it’d be much appreciated.

 http://www.mx5parts.co.uk/product_info.php/products_id/35
But all you get though is the LED.

 Thanks a lot for that. I searched on there for it and couldn’t find it. Much appreciated mate, i’ll add it to my order.