22-01-2023, 10:03 AM
Well, the dreaded yellow triangle popped up yesterday after refuelling and on scanning the codes, it seems my DPF additive pump has quit communicating.
As you replace the fuel cap, the ECU instructs the Eolys pump to inject a dose of fluid into the diesel tank. That's why it always fails after refuelling - it will have died between fill ups but the ECU has no idea until next time the cap is removed and replaced.
It had completed a regen 9 miles ago. Last issue was low Adblue (which is nothing to do with the DPF and I topped that up, no issues) nor is it anywhere near the 100k miles (only just passed 60k) but these damned Eolys systems are the work of Satan.
Wtf was PSA thinking...my wife has a 2.0 TDi BMW mini countryman, never needs any fluid like Eolys and does regens on its own with nothing else required.
Anyway, off to the garage (my trusted Bosch diagnostic centre) on Wed for a diagnostic and repair. Canbus fault first, may be related to that but I expect the pump is dead.
Weirdly when looking at the official schematics the ESP is connected to the DPF controller, weird huh... especially since my ESP does not work, never has since I bought the van. This could be connected.
Update soon.
As you replace the fuel cap, the ECU instructs the Eolys pump to inject a dose of fluid into the diesel tank. That's why it always fails after refuelling - it will have died between fill ups but the ECU has no idea until next time the cap is removed and replaced.
It had completed a regen 9 miles ago. Last issue was low Adblue (which is nothing to do with the DPF and I topped that up, no issues) nor is it anywhere near the 100k miles (only just passed 60k) but these damned Eolys systems are the work of Satan.
Wtf was PSA thinking...my wife has a 2.0 TDi BMW mini countryman, never needs any fluid like Eolys and does regens on its own with nothing else required.
Anyway, off to the garage (my trusted Bosch diagnostic centre) on Wed for a diagnostic and repair. Canbus fault first, may be related to that but I expect the pump is dead.
Weirdly when looking at the official schematics the ESP is connected to the DPF controller, weird huh... especially since my ESP does not work, never has since I bought the van. This could be connected.
Update soon.