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Posted
This co does a good moderate tune for your TD5;Alive Tuning

Be aware that your DMF and etc will not cope with any increase in HP above the standard so you will have to add an allowance to change the flywheel, pressure plate and clutch plate to solid.

Removing the EGR is a standard mod and makes little difference.

This re-map does make a small positive difference to the MPG and removes that horrible built in LR strangle the engine suffers from.

codlasher

 

HI COD there a good dealer mate there in all land rover mag thanks jon :thumbup:

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The EGR valve is intended to reduce NOX emissions. It opens at tick over and low speed allowing exhaust gas to replace some of the fresh oxygen rich air. Early versions are powered by the vacuum in the inlet manifold, later versions are controlled by the engine management system.

 

Two issues are being confused in this thread; desire for more power and an underlying engine issue causing black smoke

 

In a normal healthy engine removal of the EGR will do little to affect performance or mileage (except to reduce another restriction in the inlet flow) however with age (typically begins at 60k miles) the EGR gets gunked up with all the crap coming in from the exhaust gas. This gunk causes the valve to stick open meaning that under high throttle openings or load the engine will not be breathing clean fresh oxygen to burn the fuel instead it will be breathing a proportion of its own exhaust fumes - this is what causes the black smoke conditions you are seeing and the reduced performance, unburnt fuel due to lack of fresh incoming oxygen.

 

You have already stated that the engine has been remapped recently so what's the point of spending good money doing it again over an existing underlying mechanical issue?

 

My summary would be if its a healthy engine, leave EGR alone and remap if you want more power. Older high mileage engine which you have, remove the EGR if you are seeing black smoke and reduced power and then if you want more power, remap. This really is not a LR issue it is common to most modern diesel engines, less so petrol engines with an EGR because the valve gunks up less in petrol engines.

Posted
The EGR valve is intended to reduce NOX emissions. It opens at tick over and low speed allowing exhaust gas to replace some of the fresh oxygen rich air. Early versions are powered by the vacuum in the inlet manifold, later versions are controlled by the engine management system.

 

Two issues are being confused in this thread; desire for more power and an underlying engine issue causing black smoke

 

In a normal healthy engine removal of the EGR will do little to affect performance or mileage (except to reduce another restriction in the inlet flow) however with age (typically begins at 60k miles) the EGR gets gunked up with all the crap coming in from the exhaust gas. This gunk causes the valve to stick open meaning that under high throttle openings or load the engine will not be breathing clean fresh oxygen to burn the fuel instead it will be breathing a proportion of its own exhaust fumes - this is what causes the black smoke conditions you are seeing and the reduced performance, unburnt fuel due to lack of fresh incoming oxygen.

 

You have already stated that the engine has been remapped recently so what's the point of spending good money doing it again over an existing underlying mechanical issue?

 

My summary would be if its a healthy engine, leave EGR alone and remap if you want more power. Older high mileage engine which you have, remove the EGR if you are seeing black smoke and reduced power and then if you want more power, remap. This really is not a LR issue it is common to most modern diesel engines, less so petrol engines with an EGR because the valve gunks up less in petrol engines.

 

You missed out the bit about removing the DPF . That does help performance and mpg .

Posted

It ran with no smoke no power and no economy prior to re-map, since re-map it runs with black smoke when labouring under load more power and more mpg, i just wondered if the mods i mentioned were worth doing to help my landy along?

Posted

A 53-plate TD5 will (at least when it left the factory) have a cat and no DPF.

 

The Landrover TD5 engine definitely benefits from having the EGR removed, largely because the valve unit itself causes a considerable restriction to the air flow into the engine. Removing the valve allows the engine to breathe much better.

 

I removed the EGR from my 02-plate TD5 after about 4 years of ownership and wished I'd done it years earlier.

 

I would suggest now that if you do this you keep the parts you remove just in case our idiot lawmakers legislate against EGR removal.

Posted
A 53-plate TD5 will (at least when it left the factory) have a cat and no DPF.

 

The Landrover TD5 engine definitely benefits from having the EGR removed, largely because the valve unit itself causes a considerable restriction to the air flow into the engine. Removing the valve allows the engine to breathe much better.

 

I removed the EGR from my 02-plate TD5 after about 4 years of ownership and wished I'd done it years earlier.

 

I would suggest now that if you do this you keep the parts you remove just in case our idiot lawmakers legislate against EGR removal.

 

Hi WOLF MY BROTHER had his one maped out on his VW T5 WOLF just the TD5 to a good remap dealer thanks Jon

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