There are a few threads on the subject, but here's just one: īasically if you want to keep your fuel efficiency, not reinstall EGR, and not get a check engine light, you need to get a chip tune.Įdit: also for the record, it will take longer to send heat to the cabin of the car, because you'll no longer have the EGR Cooler adding heat to the coolant that then goes right to the heater core in the dash. Just carefully unplug the wiring and carefully remove the (three) allen head bolts and remove it for a good clean up about once a year or every 20,000 miles and you are good to go. then on a recent roadtrip remembered that the PO had set EGR adaptation to keep the intake manifold clean. EGR concerns are NOT a concern with the 2004/2005 Passat TDI with BHW motor. I had been wondering why the 2k Jetta I bought was only getting 46mpg on it's best day. Just for the record, setting adaptation to turn down EGR will most likely impact your mileage negatively.
