07 transit connect diesel problem

07 transit connect diesel problem

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Original Poster:

3,358 posts

173 months

Tuesday 19th May 2015
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Hi there chaps, i have a connect in at the mo with an intermitant power loss, it drives fine but if you rag it in gear in the next gear it will hold back quite violently, then the power comes back in softly followed by a few sharp jerks as the power drops off again, it's more like the engine has shut off rather than a gradual loss of power, there are no fault codes.
I have driven it with a code reader instaled recording live data and all i can see if there is a sudden drop in fuel pressure, it will drop from 5560 PSi to 940 PSi, then as expected the revs drop fiollwed by the map and maf reading dropping until the fuel pressure jumps back up to 6000 odd PSi ?
I have changed the fuel filter and it made no differance, anyone got any other ideas?

There are no other problems, no smoke (of any colour) and it can go for days without the issue, IF you dont rag it through the gears, it has a new I/C, there are no leaks and it starts on the button without smoke, i regularly service the van and it's a no expense spared customer/owner, if it needs it it gets it, last job was to replace the EGR pipe as it had rusted through.
any ideas or experiance ?