Ok so I went out on a wind and bought a 407 1.6 hdi with dpf and engine management light on. Knew when I picked up car there where other faults injector seal gone, aux tensioner noisey. Anyways removed dpf soaked it in alloy cleaner refitted it pleged it in came up with numerous dpf faults plus egr faults. So I cleaned egr aswell and cleared codes start car codes come straight back on agian. Took car nearly 2hours drive to try and regen dpf still no change. Can I just map out faults as car sits ? Or do dpf and egr need to be working before remap

Well some fault codes would help, to see exact what the problem is?

P2033 addiative system fault

And also there is a u code u0046

change 1 bit to remove FAP, as hasteriscs to EGR and code falts desapear...