Hey folks,
I recently bought my TDI and have been doing massive amounts of research (of which this site has greatly contributed). One of the things I read was that I could use a VCDS to recalibrate the EGR so as to never have worry about future black sticky tar build-up.
However, I read in part 2 of the TDI buyer's guide on this site that "Many people suggest turning down the EGR with a VCDS but the ECU will adapt and the result is lower fuel economy."
This is the first time I am hearing of this. What kind of lower fuel economy are we talking about? 1-2 MPG? 5-10 MPG?
What is the ECU adapting to that results in the lower MPGs?
What does the TDI community have to say?
Regards,
Lee
I recently bought my TDI and have been doing massive amounts of research (of which this site has greatly contributed). One of the things I read was that I could use a VCDS to recalibrate the EGR so as to never have worry about future black sticky tar build-up.
However, I read in part 2 of the TDI buyer's guide on this site that "Many people suggest turning down the EGR with a VCDS but the ECU will adapt and the result is lower fuel economy."
This is the first time I am hearing of this. What kind of lower fuel economy are we talking about? 1-2 MPG? 5-10 MPG?
What is the ECU adapting to that results in the lower MPGs?
What does the TDI community have to say?
Regards,
Lee