@skidpan.. yes mate i have all the relevant docs to support this.. im only quoting silver/black top as the 2005 block has a black rocker cover as opposed to my original being silver so fook knows.. im only going by visual appearances :-/

Spoke to a mate of mine who knows Duratecs very well, runs them in his race car. The Mondeo Duratec from 2001 on uses a cast alloy cam cover. The 2.0 Duratec used in the Fiesta ST from 2004 ish to 2008 used a black cam cover but he was not sure of the material its made from, always buys Mondeo ones because they are cheaper. People pay more for ST engines although they are no better. Based on that info you may have bought an engine from a Fiesta instead of a Mondeo and the loom/management/sensors may not be interchangeable.

Going back to 1990's Zetecs I know there were issues when people replaced engines in a manual with engines from an auto. Simple enough to swap over the flywheel/clutch etc but the crank sensor holder for the auto was shorter,would not get a signal form the manual flywheel and would not send a signal to the ECU. Problem was it needed the engine out to swap it.

Wonder if there are different length crank sensors/holders or something similar in the Duratec.

Thanks for the replies so far guys..

Just to confirm the only new stuff in the bay is the block and head.. I am using all my original wiring, sensors etc including crankshaft pulley.

The new block is exactly the same apart from the colour of the rocker cover, was silver, now black.

I have all the documentation confirming engine numbers etc also confirming its from a manual 55 plate mondeo zetec (mine is also manual).

With regards to the Fiesta ST 150 engine I have already been down that road as the first engine I was supplied from my local breakers was exactly that, which is engine code N4JB and not the CJBA from the mondeo (which is both what I originally had and since purchased and installed).

The ST150 engine is the same bottom end but not top.. it requires different intake manifold, oil cooler (which mondeo does not have) etc etc.. This is why I returned it and sourced the correct engine CJBA.

One more thing.. the engine does crank just no spark.. the voltage pulse at the coils plug connector reads minus something then settles at 0 unlike autodata which tells me it should be +0.6.. the reading from the HT ports is correct at 10.1-10.2.

This is why I am suspecting wiring/component changes during the facelift.

hi everyone, new to this forum, ive got the very same problem that this guy had! id really appreciate any help anyone could give me.

tia scott.