C5 2008 2.0hdi P2670, P2671, P1710, P1361

[RochK]

Sorry for my engish but native forums give up on this problem

As in topic the patient is C5 2008r 2.0Hdi with these errors

P2670, P2671, P1710, P1361

Car starts perfectly, runs smooth but lack of power.
100km/h is chellange.

When i check with diagbox voltage 1 nad voltage 2 it read 5.00V and its stable.
Plugs reads are around 0.4-0.6 Ohm - replaced less then year ago.

Already replaced BSI nad BSM with no luck - symptoms the same.

Most confusing are P2670 and P2671 witch exluds each other.

[Kees]

Start with erase them all, then check with one came up first, and work from that point.

[RochK]

thats the problem i can not errase them
i get comunicate "Lack of memory - turn the ignition off and on "

[wurlycorner]

Hmm the voltage too high and too low is an interesting one because as you say, they are direct opposites.
I wonder if this is a situation where the circuit measures fine on voltage with a multimeter (can carry the voltage at low current ok) and appears low resistance when tested with a multimeter (also tests at very low current) but cannot carry full current under load (which would result in voltage issues that the ECU is picking up?).
Either due to frayed wire, corroded wire/earth etc somewhere in the circuit?
Not sure about the ‘lack of memory’ error message.

[myglaren]

thats the problem i can not errase them
i get comunicate "Lack of memory - turn the ignition off and on "

Try a BSI Reset, that should clear the stored codes.