Rob-e91
Member
Registered: 11th May 09
Location: South Wales
User status: Offline
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Can someone just breifly tell me why people blank egr valves off and what they do? does it improve idle?
if so i'll be looking to do this to my x14 soon.
Thanks
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Edges 58
Member
Registered: 30th Mar 10
Location: Nottingham
User status: Offline
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when an engine gets too hot it produces too much nitrates oxygen which is bad for emissions so egr sends gasses back into the inlet which lowers the overall engine temp but isnt great for power. hope this helps
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Rob-e91
Member
Registered: 11th May 09
Location: South Wales
User status: Offline
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yep that sums it up m8 thanks
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Edges 58
Member
Registered: 30th Mar 10
Location: Nottingham
User status: Offline
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nitrates of oxygen sorry
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djgritt
Premium Member
Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
User status: Offline
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Edges is close - it reduces NOx Emissions - Oxides of Nitrogen - combinations of NO & NO2
As said - pumps some emission back through the inlet to repeat the combustion process. The NOx emissions are inert so help chill the combustion - the reduced temperatures reduce the levels of NOX produced
I work on a similar system referred to a FGR (Flue Gas Recirc) on some of the equipment my work manufacture.
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Rybo
Member
Registered: 6th Mar 08
Location: Cumbria
User status: Offline
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how do you remove this from the x14/x16 engine?
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djgritt
Premium Member
Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
User status: Offline
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quote:
Originally posted by rybo8655
how do you remove this from the x14/x16 engine?
You can place a blanking gasket inside the valve (it has 2 parts so a gasket can be sandwiched)
Or you can buy a sports manifold which doesn't have the ports/channels for it machined into the flange face
OR, you can do both
Be wary - access to the valve on the smallblock XEs is a bit of a bitch
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Rybo
Member
Registered: 6th Mar 08
Location: Cumbria
User status: Offline
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i knew it was tight,my cousins em light keeps flashing egrvalve...it runs fine i just want to sort it for him...can they be cleaned or anything??
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Vivasam
Member
Registered: 31st Jan 10
User status: Offline
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The egr valve can be cleaned, there is a how to on here, or you will find it on migforum.
As already said a bit of a bitch to get to, and be careful with the torx bolts, they can snap off, try to tighten it a shade first, then take it off.
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