Originally Posted by DanW@FastFord

Good progress. Injector/fuelling issues are such a pain to sort. I was battling with mine for a couple of years before it ran ok.

The clips definitely do seem to cause issues, so it's very wise to fit them first because they're simple to do.

If that doesn't work it may be worth swapping the IMV rather than the whole pump for a start - At least to rule it out! Just do one thing at a time to help diagnose it.

Be aware that faulty injectors can still pass a leak off test (mine did) but I'm aware this seems to be very rare. I ended up having mine on a Delphi test rig (which tests a huge number of parameters) and they were found to be shot, despite 'passing' a leak off test before. But as I said, this does seem to be the exception, rather than the rule.

I used the Delphi Diamand kit to recode it (the same Ford use) and even with that, and a very senior bloke from Delphi on the other end of the phone, and it was still a bitch to recode - hence my earlier comment.