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Discussion Starter #1
I hope someone can point me in the right direction to resolve problem I have with my car.
Over the last 3 weeks it has developed two intermittent faults.

1. When under acceleration it stutters/hesitates sometimes, then seems to be OK, once when it did this the internal heating fan stopped working. There does not seem to be a pattern to when it happens. I have travelled 60 miles and it not happen, and I have travelled 3 miles and it has happen 3-4 times.

2. Engine cuts out. Sometimes this is after it has stuttered/hesitated, sometimes it before. I have to leave the car switched off for 3-4 minutes, then it starts OK.

I have had the car on Peugeot Planet diagnostics and the following errors came up

1.Engine speed signal SC between 2 wires.

2. Mutiplexing remotely controlled triggering information not coherent.

3. Mutiplexing no BSI or air con communication.

4. Starting and switching off or the engine controlled starting or switch-off requests absent or not valid.

The engineer that did the diagnostics pointed out there seemed to be a lot of communication errors and asked if I had had any problems with the battery. The battery did fail on the car overnight about 3 months ago. I took it off the car and give it a charge usinf an Optimate Charger which seemed to recover the battery. He has resett all of the codes and suggested I do a soft re-sett of the system, which I have carried out today using the procedure on here.

We agreed that I should run the car until the fault/faults happen again and take it back to see which error shows up.

Has anyone any comments/observations/suggestions please.

The car has 58,000 and has been fully services.

Many thanks,

Malcolm.
 
C

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I've seen some if not all of these faults before certainly 2 & 4 and they usually clear and don't return.

As for the poor running/cutting out could it be the egr valve?
 

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a dodgy battery causes all sorts of havok on peugeots....

as for stuttering/hesitation/engine stall could be a number:

- idle control valve
- egr valve
- fuel filter
- throttle control
- various sensors

i bet davidireland can point you in the right direction :thumb: im sure he has a crystal ball somewhere :lol:
 

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Discussion Starter #5
Thanks for the suggestions.

EGR valve has been suggested as a possible cause for the hesitation/stuttering - next job on the list after engine service.

Fuel filter being changed this afternoon as part of engine service.

Here is hoping that solves the problems.

Malcolm.
 

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Discussion Starter #6
Update.

Engine services carried out a couple of days ago, but still hesitating (eliminated fuel filter)

Successfully removed the EGR valve this morning an cleaned it thoroughly with Wynn's EGR3.

Before I take it for a run I want to spray the remaining EGR3 into the intake system, problem being where is the best place to introduce it?:confused:

Malcolm.
 

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Discussion Starter #7
Update.

Engine services carried out a couple of days ago, but still hesitating (eliminated fuel filter)

Successfully removed the EGR valve this morning an cleaned it thoroughly with Wynn's EGR3.

Before I take it for a run I want to spray the remaining EGR3 into the intake system, problem being where is the best place to introduce it?:confused:

Malcolm.
No suggestions?
Malcolm.
 
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I've never done it so couldn't say to be honest!!

Would it be worth seeing how it drives first then do it if no or little improvement.
 

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Discussion Starter #9
Update.

Took it for a drive after cleaning EGR, cut out twice in 500m. Had to wait a couple of minute each time before it would start:confused::confused:
Came back and checked to make sure everything was put back OK, which it was.
Took it for a drive this morning kept it in 3rd gear 3 - 4000 revs, it cut out within about half a mile (revs dropped off and heater blower stopped), but I kept it rolling and it picked up again, but the ESP error icon came on! Ran it for about another 4 miles in 3rd gear, high revs, and was OK.:):confused:

Came back, turned it off, started up again and ESP error did not show again. I am not convinced I have fixed it yet. Will be putting it back on PP diagnostics next week to see if any errors are showing.

Malcolm.
 
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I hope someone can point me in the right direction to resolve problem I have with my car.
Over the last 3 weeks it has developed two intermittent faults.

1. When under acceleration it stutters/hesitates sometimes, then seems to be OK, once when it did this the internal heating fan stopped working. There does not seem to be a pattern to when it happens. I have travelled 60 miles and it not happen, and I have travelled 3 miles and it has happen 3-4 times.

2. Engine cuts out. Sometimes this is after it has stuttered/hesitated, sometimes it before. I have to leave the car switched off for 3-4 minutes, then it starts OK.

I have had the car on Peugeot Planet diagnostics and the following errors came up

1.Engine speed signal SC between 2 wires.

2. Mutiplexing remotely controlled triggering information not coherent.

3. Mutiplexing no BSI or air con communication.

4. Starting and switching off or the engine controlled starting or switch-off requests absent or not valid.

The engineer that did the diagnostics pointed out there seemed to be a lot of communication errors and asked if I had had any problems with the battery. The battery did fail on the car overnight about 3 months ago. I took it off the car and give it a charge usinf an Optimate Charger which seemed to recover the battery. He has resett all of the codes and suggested I do a soft re-sett of the system, which I have carried out today using the procedure on here.

We agreed that I should run the car until the fault/faults happen again and take it back to see which error shows up.

Has anyone any comments/observations/suggestions please.

The car has 58,000 and has been fully services.

Many thanks,

Malcolm.
The three faults above are in every 407 ecu. They are software glitches. They don't cause any problems with the engine running.

I'd be going with the engine speed sensor as it will cause problems on the network if it is sending unclear signals around it.
Check the wiring from the sensor to the ecu also.
 

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Discussion Starter #11
The three faults above are in every 407 ecu. They are software glitches. They don't cause any problems with the engine running.

I'd be going with the engine speed sensor as it will cause problems on the network if it is sending unclear signals around it.
Check the wiring from the sensor to the ecu also.
Thanks for that Dave. That's what I'll check next. Need to find it first lol. Is there a test to check it's working OK, or is it a case of replacing.
Many thanks,
Malcolm.
 
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To be honest you'll know its working if the engines running.
When they fail you won't be able to start.
Something is corrupting the signal back to the ecu I reckon. As I said get the wiring checked.
The 2.0hdi suffers from some wiring problems in the main loom.
 

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Discussion Starter #13
To be honest you'll know its working if the engines running.
When they fail you won't be able to start.
Something is corrupting the signal back to the ecu I reckon. As I said get the wiring checked.
The 2.0hdi suffers from some wiring problems in the main loom.
Help!!! Where is the engine speed sensor?

Is this wiring check between the engine speed sensor and the ECU something that has to be carried out through PP diagnostics, or is it a case of checking continuity of the wiring.

Many thanks,
Malcolm.
 

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Try this--

1 fill fuel up to 1/4 with high quality diesel

2 add a whole bottle of redex

3. give it an Italian tune up ---- (drive high revs for 20+ mins)

I did this to a friends and cured similar problems
 

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Discussion Starter #15
Try this--

1 fill fuel up to 1/4 with high quality diesel

2 add a whole bottle of redex

3. give it an Italian tune up ---- (drive high revs for 20+ mins)

I did this to a friends and cured similar problems
Sounds like a good idea. That's the job for tomorrow.

Thanks for all the suggestions.

Malcolm.
 

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Just to add -mine is a 2.0 136 se with 117000 miles ans has never had a new DPF ,I have topped up the fluid but apart from that nothing.
The exhaust tailpipe is as clean inside as it was the day it was made :nod:

My secret -- drive it hard and use the revs --- works for me :thumb:
 
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Just to add -mine is a 2.0 136 se with 117000 miles ans has never had a new DPF ,I have topped up the fluid but apart from that nothing.
The exhaust tailpipe is as clean inside as it was the day it was made :nod:

My secret -- drive it hard and use the revs --- works for me :thumb:
I have to agree mines on 109k all working fine and it's constantly up and down motorway at 80ish for twenty or so minutes at a time, long reasonably steady/hard drives help to keep dpf clear and problem free as well as keeping an eye on the diesel additive.

Drive em in 6th and as slow as possible and your asking for trouble!!!!
 
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Try this--

1 fill fuel up to 1/4 with high quality diesel

2 add a whole bottle of redex

3. give it an Italian tune up ---- (drive high revs for 20+ mins)

I did this to a friends and cured similar problems
Probably best to add..... do this at your own caution, as its not recommended to use the Redex at this strength.

The DPF filters are supposed to last 120k on the 2.0 HDI anyway.... so don't count all your chickens yet :D :thumb:
 

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Probably best to add..... do this at your own caution, as its not recommended to use the Redex at this strength
You are quite right but in 30 years I have never had any problems and years ago we use to put redex in every time you put fuel in your car.

I use the redex injector cleaner that you add the whole 250 ml bottle , ok it is stronger than it should be but it soon dilutes when you add more fuel.

Drive em in 6th and as slow as possible and your asking for trouble!!!!
This and constant town driving is a big cause of DPF problems.

In France you never see a 407 going slow !!:D
 

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i had problem with mine as well check DPF is not clogged up mine was choking engine like having a potato stuck in exhaust the differential pressure should be low if its ok mine was 128mbars think it should be about 6mbars check with planet

This was mine when clogged had DPF removed cured problem but would recommend changing dpf if its the same as removal was a pain for me and still have regen problems.
 

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