TPI Questions

[Jeffrey R Muehl]

I apologise - I feel like I'm beating a dead horse.

It was mentioned a while back that with a standard transmission I should
ground the P/N pin on the ECM - done.
Someone told me that if you do this, the EGR valve will never work anyway.
  Is this true?

And if it is, do I still need to change the timing (or fuel), when the EGR
should have been working (part throttle)?

Jeff