[michaelk]

You beat me to it RedSector! One point👆🏼 Ok. Re:1351, pretty much every 407 HDi has that fault. Likely just one or more glow plugs gone. Don’t need ‘em if you’re above zero degrees.

 

[michaelk]

Yeah thanks mate, PP2000 didn't seem to give us much to go on that would stop the car starting, laptop has been completely reloaded with windows 10 and trying diagbox on vmware win7 32 bit.
The owner is looking at getting a replacement relay for the glow plugs if just to rule it out.
If its the glow plugs themselves its beyond what I'm prepared to do on it.
Where is the turbo pressure sensor? Last time I did peugeots it was the old school 1.9 mech pump type lol

When you get Diagbox installed there is a feature to activate relays and actuators. You can force the relays to ‘click’ as a way try if they work.
I honestly don’t believe that you preheat circuit is your problem though.

 

[michaelk]

My ‘06 third-world special 407HDi (I live in Ecuador) has a DPF. If you look underneath near the LH rear wheel you’ll see a little extra ‘fuel tank’. If it has that, that’s the additive. Also you’ll be able to see the pressure sensors front and back of the cat if it has a DPF.