Thanks guys for your comments. Lambda is now wired under side skin and seems to not be a problem. Mankee you are correct I must leave the cat on as the insurance companies here will declare your car illegal if it is not as it was for ITV ( and you make a claim of course ). The good news is I have found two people over here who are familiar with Emerald and have rolling roads, result. Just need to get the engine rebuilt to 1800 and get it mapped. Dave B