18th Nov 07 Hi Andrew You will see from the above that your excellent back up service and photo diagram saved the day and all is well! I am sorry that I put you to so much trouble yet I guess this is the first time that I have experienced a common rail set up having been ‘spoiled’ by VAG PD engines for the past 145,000 miles!Even they are soon going over to common rail now I see! A bit of a bugger to find I must admit, and even more so to disconnect and reconnect, but I cannot thank you enough for the personal service which reassured me that you are REALLY interested in the products you sell! THANK YOU! The performance increase is quite different to that achieved by units on the PD engine.I shall have to get used to this, as the increased torque does not seem so noticeable so low down the rev range as with VAG engines. Having said this the HDi engine is more willing to rev than the latter. Just how much more am I able to turn up the wick if I need to experiment? You did mention on the phone about numbers 11 or 12 ..was it? At this stage do I need to watch for black smoke?!Is there an advantage in doing this? Thanks again and I would be very happy to add a testimonial if you require? Cheers Simon