P1666 fault code 55 transit connect.
With an endura di engine. Keep getting p1666 and p1000, had a search on here but only 1 thread came up. Where should i be looking to solve this? Had the crank sensor out and it 'looks' fine.
Van is only occasionally starting but cutting out right away most times. Other times it will rev up but the therevs jump about an it dies.
Any suggestions? Cheers.
Van is only occasionally starting but cutting out right away most times. Other times it will rev up but the therevs jump about an it dies.
Any suggestions? Cheers.
P1666 iirc is a syncronization timing error,can be caused by faulty cam sensor on top of rocker cover. (if TDCI)
Ford modified them, and a good tip is to put a 12v ignition feed to the pin that is the 5v reference on the sensor, gives a better signal.
I think the modified sensor is grey and original is black, 90% sure on that. Long time since I fitted one.

sensor on eBay - http://www.ebay.co.uk/itm/ford-FOCUS...item1c15c538d5
Ford modified them, and a good tip is to put a 12v ignition feed to the pin that is the 5v reference on the sensor, gives a better signal.
I think the modified sensor is grey and original is black, 90% sure on that. Long time since I fitted one.

sensor on eBay - http://www.ebay.co.uk/itm/ford-FOCUS...item1c15c538d5
Last edited by GVK.; Dec 23, 2011 at 02:01 PM.
Oh........I thought a 55 plate would have one, weird! does it have any TDCI badges anywhere
Noticed you said endura di, but I thought it'd be too new for that.
Noticed you said endura di, but I thought it'd be too new for that.
Last edited by GVK.; Dec 23, 2011 at 01:00 PM.
No mate, no tdci badges.
I did a timing belt on a 55 focus a few weeks back that had the endura diesel engine in it aswell, ford must have been trying to get rid of the last few eh!
Any other ideas fella?
I did a timing belt on a 55 focus a few weeks back that had the endura diesel engine in it aswell, ford must have been trying to get rid of the last few eh!
Any other ideas fella?
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If it hasn't got a cam sensor, the timing error could possibly be a timing fault (cam belt) or crank to pump timing chain fault or something along those lines.
When you had the crank sensor out, did it look ok with no swarf or marks on it?
Could try a crank sensor and check the timing.
Last edited by GVK.; Dec 23, 2011 at 01:13 PM.
Looking like fuel pump, but as the code is a fuel pump syncronisation error (timing) I wouldn't jump to conclusions - one of the lads I worked with did a big engine job on a Connect once (oil leak behind the front cover)
When he built it back up it wouldn't start, after a lot (days of messing about) it turned out he had used the wrong crank pin to time it up!

If it was a Transit 2.0 / 2.4 with a P1666 that can be caused by a timing chain fault.
When he built it back up it wouldn't start, after a lot (days of messing about) it turned out he had used the wrong crank pin to time it up!

If it was a Transit 2.0 / 2.4 with a P1666 that can be caused by a timing chain fault.
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