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Discussion Starter #1 (Edited)

My Peugeot Boxer 2.0 hdi won`t start.
My autocom diagnostic software showed a low fuel rail pressure of only 67 bar so I changed the high pressure pump, it came with a fuel pressure regulator but I noticed that the old and new regulator did not match.
The old one had bigger hole so I thought I had to use that one but the van would still not start.
So I switched to the new regulator and BOOM the van started.

BUT, after some days the van became slower and slower to start and now it won`t start at all.
My autocom diagnostic software says fuel pressure regulator :confused:

Will the fuel pressure sensors need programming/coding?
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