ecu wont add eolys to fuel!

[GiveMeABreak]

That should of been 20 km/h - corrected my last post ^

Conditions for additive injection (on this 4007 2.2 system)

• Vehicle speed above 20 km/h or last fuel addition over 300 seconds
• Internal combustion engine running
• Starter switch in the ignition positive position
• Adequate additive level

[dds]

Some update - I've used all fuel and today filled up 50 litres and covered some 130km.
Connect the pc and there is the same level of additive 3254ml

[GiveMeABreak]

It only uses a very small dose so may not show immediately.

Incidentally, please upload your pics here directly - we don’t advertise for photobucket. The forum hosts pictures for you - just attach the picture. Apart from that their advertising is splashed all over the readings!

[gegu007]

Hello Marc,

do you know maybe how this injection procudere looks on C4 Picasso 1.6HDI (9HZ engine)? I mean the conditions for running the additive pump after fueling up the car?
I would like to check if the operation works correctly.

Thank you in advance,

Regards
Grzegorz

[GiveMeABreak]

The engine ECU has a measurement of the fuel when the engine is stopped. On starting the car it determines whether any fuel may have been added or not (some vehicles used the fuel filler cap sensor, others do not). If the engine ECU determines that fuel has been added, it calculates the difference and works out how much additive to inject into the fuel tank.

There's not a lot you can do to check the operation unless you connect up to Diagbox to read the data on the additive system from the engine ECU parameters.

[gegu007]

Hello Marc,

thank you very much for the answer. Recently I exchanged poouch with Eolys to new one (2L), reset counting for fluid level in ECU, checked in Diagbox manulally how the pump works, it works very well( I heard loud and clear).
Also in Diagbox on ECU I see that level of fluid decreased slightly after 2 months, what is good and indicates that everything works well. My concern is only how to check phisiccally (without Diagbox) in real conditions that pump is running after fueling up. You wrote above on this post conditions for running pump on Peugeot: speed above 20km/h, ignition on..., etc. Are these conditions same for Citroen C4 Picasso or there is something different?

Regards,
Grzegorz

[GiveMeABreak]

It depends on the exact injection and additive system you have, they are not all the same. Pop your VIN up (auto masked) and I'll see if I can find the specifics for your vehicle.

[gegu007]

VF7**************[VIN obfuscated, can be read by forum staff]

Thanks in advance!

[GiveMeABreak]

So on your vehicle the particle filter life is approximately 75k miles or 120k KM.

Your system doesn't have a separate additive ECU that controls the metering of the additive, so it is done by the engine ECU.

You also have a fuel filler cap sensor to let the engine ECU know whether fuel may of been added or not. In this case there are a series of determinations made as to whether fuel has been added or not by recording values at engine stop and values again afterwards with engine running and on whether a fuel filler cap opening and closing cycle has taken place.

Measurements between the values are taken depending on the conditions as to whether any Eolys is added to the fuel tank or not, and on whether there is a fault in the fuel filler cap sensor if the fuel quantity is greater than the previously recorded value without the fuel cap being opened.

[gegu007]

Hi Marc,

thank you for clarifying this, much appreciated, however this makes topic more confusing. Do you know where is located this separate ECU?
I checked in Diagbox --> Global test-->Injection/Ignition--->Service Repair(FAP additive dosing) -->there is a question if car has a separate ECU for additive. If I choose YES then pulls me back to Service Repair again. If I choose NO, then appears another options reagrding to additive reset counting/ inicialization of additive level after pouch change, here I change level of additive fluid and it is recognized by ECU. That's why I suppose I don't have separate ECU.
I struggle with it only for one reason. There are no faults on the dashboard, just when I go to particle filter information(Global test) on standard parameters I see last column - below picture unfortuantelly in polisch (additive addition system fault) with information"additive addition impossible". Local dealer said that everything is OK, and there is no problem with such information - it's probably Diagbox software error. But I don't quite believe it and that's why I am trying to check how its done in real condition.

Thanks for your help.

Regards,
Grzegorz

[GiveMeABreak]

Hi Grzegorz

Apologies! I was working on another member's vehicle similar to your engine and one does and one does not have the separate ECU - your does not! I have corrected my post above to avoid confusion going forward. So in the menu where you were - please do NOT select separate additive ECU - these engines could of had both systems - that's why the option is there.

So a) reset the additive counter and b) also prime the fuel additive circuit.

[gegu007]

Hi Marc,

That's OK. You helped me a lot. Hopefully I will solve this finally.

Best Regards,

Grzegorz

[Alek Smart]

My VIN is VF3**************[VIN obfuscated, can be read by forum staff]. Peugeot 308SW 1.6HDI Dv6TED4 FAP. My PP2000 has been showing 13484 ml of fluid for two years now,so I'm assuming the tank is empty...Have been having regen issues,with the process taking a long time AND stumbling and smoke from exhaust. Can you advise of what specific fluid my vehicle takes and any unusual issues around filling the tank/bag.
Regards.
AS

[Paul-R]

If the tank really has been empty for two years then the pump will probably be goosed from running dry during this time and you may have to replace this as well.

[GiveMeABreak]

I agree with Paul. There's a fault for one or more reasons - obviously I don't know the history of your car, but if you have only had a few years are you sure the DPF is actually there? If somebody has goosed it and disabled the pump, then that could be a reason. Normally you would have plenty of warnings - both for the additive level and also the particle filter clogging.

If you have not had any of these warnings, that sounds suspiciously like the DPF is not there and also with the fact that you have black smoke coming out. If the DPF was present then it would be getting clogged through lack of regeneration, if the additive pump was not dosing the fuel tank. The only reason this wouldn't happen is if you do regular longish journeys where the exhaust gasses are getting to 550 °C in order for natural regeneration to take place.

But regardless, you should not be getting any black smoke to be honest. If the DPF is present, then it should be trapping all the particle matter. The pressure differential sensors would be flagging a blockage warning when it gets clogged, which is odd as you haven't mentioned any warnings.