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Old 20-09-11, 09:55 PM   #1
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Default 2005 407 2.0 HDi SE 136 problem.

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.
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Old 22-09-11, 05:13 AM   #2
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No help from anyone?
Malcolm
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Old 22-09-11, 08:12 AM   #3
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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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Old 22-09-11, 08:44 AM   #4
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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 im sure he has a crystal ball somewhere



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Old 22-09-11, 11:08 AM   #5
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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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Old 24-09-11, 12:31 PM   #6
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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?

Malcolm.
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Old 25-09-11, 07:38 AM   #7
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Quote:
Originally Posted by Malcolmd View Post
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?

Malcolm.
No suggestions?
Malcolm.
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Old 25-09-11, 09:35 AM   #8
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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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Old 25-09-11, 01:36 PM   #9
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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
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.

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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Old 25-09-11, 01:38 PM   #10
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Quote:
Originally Posted by Malcolmd View Post
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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