Ah I think I've misunderstood the op, sorry. Thought he meant it stinks of derv whilst driving.
Edit: Injector seals can be really easy or can be an absolute sod, I've yet to have a problem with any in a 1.6hdi. Be sure to clean the seats, or re-cut if necessary, you can pick up the tool on ebay for a few quid.
Edit: Injector seals can be really easy or can be an absolute sod, I've yet to have a problem with any in a 1.6hdi. Be sure to clean the seats, or re-cut if necessary, you can pick up the tool on ebay for a few quid.