307 HDI 2.0 DPF issues
Discussion
Bought a 307 2.0 HDI 136 version 2005 with a engine fault, blowing lots of smoke, prior to us buying it every man and his dog has messed with it, firstly suspected turbo but turned out to be fine etc etc. got it a few bits sorted on it today but the cause of the smoke and running rough appears to be massive over fueling. The diagnostics computer showed the injectors are throwing in a hell if a lot of fuel, the smoke is not oil it is diesel. Having sorted a few minor things and plugging it in, there is only one fault showing regarding the anti pollution system.. I've read that if this goes tits up/the eolys tank runs dry the car can start to over fuel to compensate or something daft. Is this plausible?
We have already put some fluid back in the eolys tank (particulate filter fluid) as it was completely empty. Still smokes though but as far as I'm aware it needs plugging back in to tell it there's fluid now. It doesn't half bellow fumes out the back though, heavily over fueling so I'm thinking it needs the DPF cleaning too.
I'm going to remove the DPF tomorrow either way, do I clean the bloody thing and refit it and get the diagnostics back on, or just drill the thing out altogether and flash a new 'DPF deleted map' to the ECU.
Has anyone else had or heard of this over fueling issue when the DPF or fluid goes?
Would really appreciate some help
Thanks
Ryan
We have already put some fluid back in the eolys tank (particulate filter fluid) as it was completely empty. Still smokes though but as far as I'm aware it needs plugging back in to tell it there's fluid now. It doesn't half bellow fumes out the back though, heavily over fueling so I'm thinking it needs the DPF cleaning too.
I'm going to remove the DPF tomorrow either way, do I clean the bloody thing and refit it and get the diagnostics back on, or just drill the thing out altogether and flash a new 'DPF deleted map' to the ECU.
Has anyone else had or heard of this over fueling issue when the DPF or fluid goes?
Would really appreciate some help
Thanks
Ryan
Have you checked the electric egr valve?,its very common for them to fail,have seen the head fall off the valve or the linkage to jam.
I would leave the dpf alone until you have fixed the fault,but you will need to get the system reset now you have topped up the tank.
Never had the system overfueling due to the tank being empty.
Hope that is of some help.
Peter
I would leave the dpf alone until you have fixed the fault,but you will need to get the system reset now you have topped up the tank.
Never had the system overfueling due to the tank being empty.
Hope that is of some help.
Peter
Exhaust recirculation and extra fuel is used to cleanthe fap/dpf.
Now i would remove the dpf either remove inners or replace with pipe and get it removed from the ecu. I would check all boost pipes for leaks, as well as egr value working correctly. I don't know the 2005 but had 2003 hdi's 406. You need to run soleniod testing, have you got pp2000
Now i would remove the dpf either remove inners or replace with pipe and get it removed from the ecu. I would check all boost pipes for leaks, as well as egr value working correctly. I don't know the 2005 but had 2003 hdi's 406. You need to run soleniod testing, have you got pp2000
pbishop100 said:
Why do you think its overfueling?,if the egr valve is stuck open it will chuck out black smoke.
It is over fueling, no question of it. The injectors were reading massively over on the computer, the smoke is not oil, it's fuel and there's bloody lots of it. Not only that when we dropped the oil it was clear that it had been thinned out, as if diesel had washed the bores and got in the oil.I have read a couple of times that the car will try and chuck in more fuel to raise exhaust temps to clear the DPF, which sounds daft but hey ho.
I'll remove and inspect the DPF tomorrow, I'm expecting it to be bloody minging inside. Then get the codes sorted now it's got the particulate filter refilled.
The smoke is more grey than black, and no it's not water before anyone suggests that.
The Spruce goose said:
Exhaust recirculation and extra fuel is used to cleanthe fap/dpf.
Now i would remove the dpf either remove inners or replace with pipe and get it removed from the ecu. I would check all boost pipes for leaks, as well as egr value working correctly. I don't know the 2005 but had 2003 hdi's 406. You need to run soleniod testing, have you got pp2000
This is my thinking, I'm going to have it off the car tomorrow so it's just whether I clean it or bloody gut the thing.Now i would remove the dpf either remove inners or replace with pipe and get it removed from the ecu. I would check all boost pipes for leaks, as well as egr value working correctly. I don't know the 2005 but had 2003 hdi's 406. You need to run soleniod testing, have you got pp2000
s
t system!!!Carful eloyls fluid is toxic and harmful and shouldn't go down the drain.
Psa really made the whole system so stupid just to reduce emissions. Send exhaust gasses back into the engine, add more fuel to increase the dpf temp, just to burn the soot. And how did they count the eloys fluid level, some based on the amount of times the fuel cap was opened others probably a monkey picking a random number...
I would definately get someone with pp2000 diagnostics equipment, if you sign up to peugeot planet there is a map of users with it. Get it properly diagnosed first.
Psa really made the whole system so stupid just to reduce emissions. Send exhaust gasses back into the engine, add more fuel to increase the dpf temp, just to burn the soot. And how did they count the eloys fluid level, some based on the amount of times the fuel cap was opened others probably a monkey picking a random number...
I would definately get someone with pp2000 diagnostics equipment, if you sign up to peugeot planet there is a map of users with it. Get it properly diagnosed first.
Already done the liquid anyway but I know, had glove and mask on etc, none left to dispose of anyway.
It's logged a fault with the system anyway so I'll be checking it regardless. Whether it's the cause of the over fueling or not I guess I won't know till I clean the filter, clear the code and try it.
I've no doubt the particulate filter will be absolutely full of crap.
It's logged a fault with the system anyway so I'll be checking it regardless. Whether it's the cause of the over fueling or not I guess I won't know till I clean the filter, clear the code and try it.
I've no doubt the particulate filter will be absolutely full of crap.
Edited by Yazza54 on Saturday 26th October 20:38
Yazza54 said:
Well it's logged a fault with the system anyway so I'll be checking it regardless. Whether it's the cause of the over fueling or not I guess I won't know till I clean the filter, clear the code and try it.
I've no doubt the particulate filter will be absolutely full of crap.
There is a guide on 406 coupe club on how to clean the dpf if you want.I've no doubt the particulate filter will be absolutely full of crap.
The Spruce goose said:
Yazza54 said:
Well it's logged a fault with the system anyway so I'll be checking it regardless. Whether it's the cause of the over fueling or not I guess I won't know till I clean the filter, clear the code and try it.
I've no doubt the particulate filter will be absolutely full of crap.
There is a guide on 406 coupe club on how to clean the dpf if you want.I've no doubt the particulate filter will be absolutely full of crap.
I use brick acid,with good results.
Once/if you successfully clean it out the computer will still require a regeneration before the faults will clear(even with a new dpf),but I doubt the dpf fault is causing your over-fueling/smoke.
When you plugged it in did you look at any dpf data or just read the codes?
And what specific fault did it say was occurring with the dpf system,there are many.
Once/if you successfully clean it out the computer will still require a regeneration before the faults will clear(even with a new dpf),but I doubt the dpf fault is causing your over-fueling/smoke.
When you plugged it in did you look at any dpf data or just read the codes?
And what specific fault did it say was occurring with the dpf system,there are many.
standard practise for lazy arses is to blow a hole through the DPF like that.
there is a pressure monitor so would cause the overfueling as the engine thinks it is blocked.
Smack it out and get a DPF delete on the ECu.
job done.
make sure you put some exhaust copper stuff when you seal it back on.
there is a pressure monitor so would cause the overfueling as the engine thinks it is blocked.
Smack it out and get a DPF delete on the ECu.
job done.
make sure you put some exhaust copper stuff when you seal it back on.
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