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 Posted: Fri Dec 30, 2011 4:28 pm |
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Joined: Feb 11, 2010
Posts: 3075
Trade Rating: +8
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Id dont know if its the same, but on a 1.4 petrol, it was doing similar and the fault was the temp sensors on the inlet manifold and somewhere else werent communicating properly causing the engine to run rich?
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Posted: Fri Dec 30, 2011 5:12 pm |
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Joined: Jan 07, 2011
Posts: 224
Trade Rating: +3
Location: Leyland, Lancashire
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Why does it reduce life of turbo though?
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Posted: Fri Dec 30, 2011 5:15 pm |
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Joined: Sep 29, 2011
Posts: 44
Trade Rating: 0
Location: Weymouth/Leamington Spa
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| ma.langan wrote: |
| Why does it reduce life of turbo though? |
I really don't think it does. I've read A LOT about EGR's and i've not heard anyone come up with that before :/
But can we try and help us poor people that have broken cars! When i last took my car out this evening, it was fine, so i have no idea what's going on :/
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| Peugeot 206 HDI LX 2.0L (2002) | |
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Posted: Fri Dec 30, 2011 6:02 pm |
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Joined: Nov 14, 2010
Posts: 12
Trade Rating: 0
Location: Buckingham
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Apparently the recirculation of the exhaust gasses through the engine create lower combustion temperatures, therefore if you block the EGR from recirculating the gasses the combustion temperatures will be higher and therefore the turbo will operate at a higher temperature and fail quicker due to the constant high operating temperature.
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| Tomorrow could be the best day of your life | |
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Posted: Fri Dec 30, 2011 6:03 pm |
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Joined: Nov 14, 2010
Posts: 12
Trade Rating: 0
Location: Buckingham
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| Abzynthe wrote: |
| Id dont know if its the same, but on a 1.4 petrol, it was doing similar and the fault was the temp sensors on the inlet manifold and somewhere else werent communicating properly causing the engine to run rich? |
So how did you fix this? Just change both of the sensors??
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| Tomorrow could be the best day of your life | |
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Posted: Fri Dec 30, 2011 6:11 pm |
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Joined: Sep 29, 2011
Posts: 44
Trade Rating: 0
Location: Weymouth/Leamington Spa
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| Walberino wrote: |
| Apparently the recirculation of the exhaust gasses through the engine create lower combustion temperatures, therefore if you block the EGR from recirculating the gasses the combustion temperatures will be higher and therefore the turbo will operate at a higher temperature and fail quicker due to the constant high operating temperature. |
Pretty sure that having slightly cooled exhaust gas passing through the cold side of the turbo would be more detrimental to your turbo/performance than having slightly higher temps on the hot side…
The way i see it anyway
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| Peugeot 206 HDI LX 2.0L (2002) | |
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Posted: Fri Dec 30, 2011 6:42 pm |
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Joined: Nov 14, 2010
Posts: 12
Trade Rating: 0
Location: Buckingham
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| propaintballa wrote: |
| Walberino wrote: |
| Apparently the recirculation of the exhaust gasses through the engine create lower combustion temperatures, therefore if you block the EGR from recirculating the gasses the combustion temperatures will be higher and therefore the turbo will operate at a higher temperature and fail quicker due to the constant high operating temperature. |
Pretty sure that having slightly cooled exhaust gas passing through the cold side of the turbo would be more detrimental to your turbo/performance than having slightly higher temps on the hot side…
The way i see it anyway |
You may well be right buddy, thats just what i've heard, i'm certainly no expert on the matter 
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| Tomorrow could be the best day of your life | |
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Posted: Fri Dec 30, 2011 6:49 pm |
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Joined: Sep 29, 2011
Posts: 44
Trade Rating: 0
Location: Weymouth/Leamington Spa
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| Walberino wrote: |
| propaintballa wrote: |
| Walberino wrote: |
| Apparently the recirculation of the exhaust gasses through the engine create lower combustion temperatures, therefore if you block the EGR from recirculating the gasses the combustion temperatures will be higher and therefore the turbo will operate at a higher temperature and fail quicker due to the constant high operating temperature. |
Pretty sure that having slightly cooled exhaust gas passing through the cold side of the turbo would be more detrimental to your turbo/performance than having slightly higher temps on the hot side…
The way i see it anyway |
You may well be right buddy, thats just what i've heard, i'm certainly no expert on the matter |
Ahhh fair enough!
Either way, I don't think this is an EGR fault, however, i'll unplug mine tomorrow and see if it makes a difference! 
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| Peugeot 206 HDI LX 2.0L (2002) | |
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Posted: Fri Dec 30, 2011 6:52 pm |
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Joined: Mar 29, 2010
Posts: 3977
Trade Rating: +15
Location: Halifax
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| Walberino wrote: |
| propaintballa wrote: |
| Walberino wrote: |
| Apparently the recirculation of the exhaust gasses through the engine create lower combustion temperatures, therefore if you block the EGR from recirculating the gasses the combustion temperatures will be higher and therefore the turbo will operate at a higher temperature and fail quicker due to the constant high operating temperature. |
Pretty sure that having slightly cooled exhaust gas passing through the cold side of the turbo would be more detrimental to your turbo/performance than having slightly higher temps on the hot side…
The way i see it anyway |
You may well be right buddy, thats just what i've heard, i'm certainly no expert on the matter |
I would have thought something like water wet or whatever its called would compensate for the higher temperature. Worth it for the extra power if the mileage is not too high.
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Posted: Sat Dec 31, 2011 1:26 am |
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Joined: Feb 11, 2010
Posts: 3075
Trade Rating: +8
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| Walberino wrote: |
| Abzynthe wrote: |
| Id dont know if its the same, but on a 1.4 petrol, it was doing similar and the fault was the temp sensors on the inlet manifold and somewhere else werent communicating properly causing the engine to run rich? |
So how did you fix this? Just change both of the sensors?? |
Yeah changing both the sensors fixed the problem.
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Posted: Sat Dec 31, 2011 4:30 am |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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| Walberino wrote: |
| Apparently the recirculation of the exhaust gasses through the engine create lower combustion temperatures, therefore if you block the EGR from recirculating the gasses the combustion temperatures will be higher and therefore the turbo will operate at a higher temperature and fail quicker due to the constant high operating temperature. |
Correct 
At last, someone who understands one of the functions of the EGR valve on a turbo diesel 
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Sun Jan 01, 2012 5:57 am |
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Joined: Feb 27, 2010
Posts: 30
Trade Rating: 0
Location: belfast
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Hi guys,
So the brother in law took the car and changed the fuel filter which was completely full of sludge, said he took it out for a run and everything was fine.... Until the 33 mile when it did the same thing and stranded him .
I'll tell him about the sensors and see what he says.
Cheers so far guys.
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| loud, proud and modified ! | |
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Posted: Sun Jan 01, 2012 6:04 am |
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Joined: Feb 27, 2010
Posts: 30
Trade Rating: 0
Location: belfast
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I just reread propaintbellas post about the injectors ticking, Claire's car was doing the same when she started it on boxing day.
Could I have injector/sensor fault ?
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| loud, proud and modified ! | |
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Posted: Sun Jan 01, 2012 6:26 am |
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Joined: Sep 29, 2011
Posts: 44
Trade Rating: 0
Location: Weymouth/Leamington Spa
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| Royster wrote: |
I just reread propaintbellas post about the injectors ticking, Claire's car was doing the same when she started it on boxing day.
Could I have injector/sensor fault ? |
I can only really hear mine when it's under load, between like 1.5 and 3k rpm…
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| Peugeot 206 HDI LX 2.0L (2002) | |
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Posted: Thu Jan 05, 2012 11:58 am |
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Joined: Feb 12, 2010
Posts: 98
Trade Rating: 0
Location: Leeds, UK
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|I also have a 1.4 HDI and it was cutting out similar to yours.
It turned out to be the crankshaft sensor and once I got that replaced, which was very cheap, it has been fine ever since.
Andy
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