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Discussion Starter #1
Hi

Can someone help me? HDI 136 307

I have had my DPF removed today and mapped out of my ecu, they are a specialist in this area so i have to trust them. They said my DPF was clogged up but when they reset the ecu to get rid of the fault when they took it for a drive it came back on. They said the DPF is fine but it looks like my EGR valve could be faulty/blocked a bit.
They have given me a print out with the following on:-

Permanent Fault EGR valve cct, valve position too distant in relation to the reference value.

Intermittent fault, turbo pressure regulation turbo pressure measured too low

intermittent fault, engine cooling function integrated into the engine control unit consistency between the fan speed and the setting

intermittent fault dust filter (FAP) particle filter clogged

intermittent fault, turbo position repeat signal position of the valve too open relative to the setting.


Does this make sense to anyone, could a EGR valve fault link all these faults together. My EM light is still on, the cars runs normal apart from a little stutter when very light throttle is applied when revs are low, and now and again the car struggles to pull away without stalling for a few mins then runs normal again.

Help please, i have read the egr is a nightmare to get to on a 2.0 307 hdi 136.....is this right


By the way all these symptoms where there before the DPF removal but it kept regening as the filter was blocked.

cheers in advance

Graham
 

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If they are the specialist you're paying to do it, you shouldn't need to ask on here, they should have fixed it for you? Maybe take it somewhere else?
 

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Discussion Starter #6
I did ask I was hoping for someone to back there claims up before I have to try and take my egr valve off as I believe its a pig of a job. I have read up on the subject but don't understand half of it, to get to the egr valve do you have to take windscreen wipers off and the plastic or I there another way.
 

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Discussion Starter #8
Hi

had my ecu faults reset yesterday and only the EGR fault came back with the spanner light on the dash, i have just finished reading the 40 odd page thread regarding egr valves which was very interesting.
Have i got this right the egr closes one you get on the motorway etc and your revs increase and then it opens again when your idling or slow town driving to reduce emissions (sounds like mine is sticking a bit when at low revs), it seems that if i blank the egr it will throw a fault code but usually doesn't put a light on the dash.
If it does put the light on the dash is there anyone on here who can map out the egr thats close to St Helens (have tried Craig but his lap top blew up). I'm hoping its not needed but just in case....

Cheers Graham

307 Hdi 136 2005
remapped
Dpf removed
 

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if its electronic and its jammed it will throw the light on. if its removed from the map properly it wont regardless but its ideal to blank it off afterwards as if its stuck open gases are going back into the engine
 

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Discussion Starter #10
My EGR blank came today and like an idiot I assumed it fitted to the engine end of the pipe so you can get to it easy, until I saw it was flat and realised it went at the EGR valve end of the pipe.
Is it even possible to fit the blank to the egr end from under the bonnet or do you have to go from underneath....it looked impossible.
Need this fitting asap as its getting worse now at low revs, I guess the egr cleaner spray I tried has wore off (what little it did).

Thanks Graham
 

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as long as you fit it in the line from the egr to the engine it will still work.

problem is the blank will be a certain design so what bit is it designed to sit into lol
 

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Hopefully you've got one with two slots rather than holes for mounting?

Access is tight but not as bad as it first seems - simply reach over back of engine - locate the two bolts and slacken off just enough to slide the shim into place then tighten back up.
 

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Blanking the EGR will NOT fix a fault as if the egr is throwing a fault code it is the electrical side the ecu is not happy with blanking will not change the fact it is best to fit a good working egr valve when you blank it as it will then be happy for a long time possibly forever :)

When the EGR valve breaks it is generally the valve side that causes the issue BUT the electric feedback to the ecu goes out of range and throws a fault.

Basically electronic EGR valves need to be in full working order prior to blanking blanking a faulty one will help the running but it will not put the light out.
 

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Discussion Starter #14
Hi all

Fitted the blank eventually today, took the liner out above and moved a fluid tank out the way which made it easier but was still very fiddly. The car is running as it should now but the EML is still on. I have had it reset but a mile down the road it came back on, i read that it does throw a fault up but doesn't usually show up on the dash...have i done something wrong

Can PPlanet remove the sensors so it wont show on the dash

Cheers Graham
 

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Discussion Starter #17
aha miss read your post, have to get it mapped out or live with the EML then as i really don't fancy getting the egr valve out myself.

Cheers Graham
 

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Mapping out is not necessary a good working egr will last a long time once blanked replacing the valve is not as hard as it seems and it would probably be cheaper than mapping :)
 

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Hi guys,

first, thank you, everyone, for useful information from this forum. I'm using it and reading for a while and again, first to thank you, and second I hope I could again, with some your help resolve a problem (couldn't find here) and share with other people.

I couldn't find a topic for introduction, otherwise, I would do it. I have a Peugeot 407 2004 2.0 HDI 135.

Recently, the following situation appeared:

- day 1, I was driving for about 400km with rpm 2500 - 3000 (highway) without problems
- day 2, while driving back home, the car just on highway lost the power and while pressing the gas, especially on lower RPMS, started to throttle. No errors and i had to drive like that until home. In meantime, I tried to stop/start the engine, but same. Then after some time, I got a message in the car, smthg like: "risk of particle filter blocking" and after half hour: "depollution system faulty" and engine light, but no changes in car.


Day after, I read the errors in my car and unfortunately I don't have a picture of It but as I remember it was these:
  • Permanent Fault EGR valve cct, valve position too distant in relation to the reference value.
  • Intermittent fault, turbo pressure regulation turbo pressure measured too low
  • One was for glow relay i think, but it is there for a while, but never made me a problem
I removed the EGR Valve and try to clean it up, but it was nothing to do, it was in pretty good condition.
I'm thinking now to buy the new valve and to replace it, but is there a way to know if it is broken?

What i also have tried, I removed the plug directly from the EGR and tried to drive and the car had no throttling when I disconnected the EGR but still, the power was not 100% back. Is this enough to detect broken EGR?

Many thanks to everyone who wants to help.

Greetings from Serbia/Austria!:thumb:
 
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