Mazz
09-09-10, 11:21 AM
"The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. This results in a cooler, more complete burn of the fuel which decreases you car's noxious emissions by prohibiting the formation of some harmful gases."
As a result, they get carbon'ed up and stop working, causing rough/lumpy idle and revving. By doing this you are by-passing the EGR valve.
They can be replaced, but are quite expensive, so after this thread (http://www.pngclub.com/forum/showthread.php?t=147367) and some googling I found you can blank them off. Vauxhall (http://i136.photobucket.com/albums/q187/davcohen/Picture.jpg) actually sell EGR blanking plates for some cars!
I tried the coca-cola (well Dr.Pepper tbh!) methold for a quick test..
Get a drink's can and consume the liquid goodness!
The EGR valve is hold on by 2 x 10mm nuts..
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5827_Medium.jpg
Remove it and make a template using the original gasket.
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5828_Medium.jpg
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5829_Medium.jpg
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5830_Medium.jpg
And re-fit! Simples :)
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5832_Medium.jpg
After doing this, the ECU was still on but revving up and idled and lot better than before, but after a long run the ECU light went off and has stayed off.
***
EDIT : Leave the EGR connected/piped up too!
As a result, they get carbon'ed up and stop working, causing rough/lumpy idle and revving. By doing this you are by-passing the EGR valve.
They can be replaced, but are quite expensive, so after this thread (http://www.pngclub.com/forum/showthread.php?t=147367) and some googling I found you can blank them off. Vauxhall (http://i136.photobucket.com/albums/q187/davcohen/Picture.jpg) actually sell EGR blanking plates for some cars!
I tried the coca-cola (well Dr.Pepper tbh!) methold for a quick test..
Get a drink's can and consume the liquid goodness!
The EGR valve is hold on by 2 x 10mm nuts..
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5827_Medium.jpg
Remove it and make a template using the original gasket.
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5828_Medium.jpg
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5829_Medium.jpg
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5830_Medium.jpg
And re-fit! Simples :)
http://i5.photobucket.com/albums/y191/mrmazz/egr/CIMG5832_Medium.jpg
After doing this, the ECU was still on but revving up and idled and lot better than before, but after a long run the ECU light went off and has stayed off.
***
EDIT : Leave the EGR connected/piped up too!