Quote:
Originally Posted by UFO
At this point it looks like EGR on the ALH TDI doesn't seem to impact fuel mileage much at all. Perhaps because the intake is not throttled like other turbo diesel EGR systems like my Jeep Liberty CRD, which did respond well to EGR delete.
|
Interesting results. We do have an "anti-shudder" valve in our TDIs. I was under the impression that it did choke off the intake to introduce more EGR when called for. Regardless, your mod does not seem to be making a large impact on mpg. Do you suppose any increase is being cancelled by longer warmup times? It would be interesting to see if a big highway trip would show mpg gains.