New to mods some questions

[rockyrunner99]

Ive had a TDI and been around here for 10 years but just got one with some power mods. It has a VNT 17, not sure what injectors and an RC3 tune. It is a blast to drive, and cant wait for spring to put summer tires on it and some suspension work. My questions are, Its torque really drops off over 3000, I know its common with diesels, but my old nearly stock one seemed to pull more a little higher. It has the stock Egr valve still with the tune keeping it from doing much I think cause the intake it pretty clean. I know that is pretty restrictive. I like not having a check engine light on for once though. Im thinking of porting out the EGR as much as I can with keeping it functional enough to keep the CEL out. Any advice?

 

[Nero Morg]

Have you checked the usuals, like boost/vacuum leaks? Fuel timing? Snow screen not plugged? Good maf?

 

[rockyrunner99]

Timing is good, Snow screen is MIA, MAF has not been thoroughly checked, but It is clean and it runs well. I took it to my guru to have him check it over when I got it and he said all is well. As for boost leaks, I Don't think it has any, It pulls really hard at 2000-3000 rpm. I'll have to do some more logging and pay closer attention I guess. It doesn't smoke. At night in head lights I can see a very faint fog but is not noticeable in the daytime.

 

[Nevada_TDI]

A vacuum gauge would be helpful. Apply vacuum to the actuator arm and check for movement. Put a vac gauge on the N75 with the engine runnimng and see where your starting vacuum is.