So since I've fitted my toyosport de cat pipe and milltek back my engine management light has come on I've got a angle extender in the front lambda hole is that right or should it be in the second? And it also seems to run a bit lumpy does anyone know why

second one mate the first one tells the ecu how much fuel to use 

Alright nice one al get it swapped tomorrow then should it sort the lumpy running out do you reckon

yes it will sort it i was running my car with lambdas round wrong way ran like a pig lol