Quote:
Originally Posted by UFO
When I ran with disabled EGR in my TDI (with CEL set) it made no significant difference in economy. However it made a huge improvement (about 10%!) in the fuel economy of my Jeep CRD, and that has a modification that tricks the ECU so it doesn't set a CEL.
So I am working on the same device for my TDI and will document any differences here when I do that.
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just change the vag com adaption block 3 to 33768 it turns the duty cycle to near 0, and causes no CEL at least on ALH cars.
I run my egr at stock, I see a .75-1 psi increase of boost at 75 mph with it off and would prefer to keep NOX down.