You need to flash the PCM for any changes to take effect, and you need to have the engine off to do that.
You do not need a EGR block off plate. Removing the codes will not do any good. That will not turn off the EGR. You need to go in to VCM editor then click on engine, then go to the general tab. There you will see EGR min IAT, It shoudl be at -40, change that to 284, save it, flash to the PCM and your set. No need to remove the EGR. Now it'* set to only turn on if the temp reaches 284*, and that will never happen.
SAVING THE WORLD ONE BONNEVILLE AT A TIME
1997,1998,2000,2005 year confused Bonneville SSExi. Stock? ish.
ADMIN @ http://www.f150-forums.com/