a while ago my CEL came on, pulled the code and it was the EGR. before i replaced it i was getting 10.2-10.8 city only with the overhead calculator. it ran rough and would stall out. i changed it, CEL went away after i cleared it and it runs smooth but now it get anywhere from 9.3-9.7. i have yet to manually calculate it since i replaced it but when i did with the bad EGR it was within a few tenths from what the overhead was reading. its a 2005 5.7 hemi bone stock with 40k miles. any ideas?

 

You should reset the pcm. Pull fuse #23 get into truck, turn key to the start position after a few seconds you will hear a chime that means the pcm is reset, replace fuse and your are done. That should help also it could be winter gas.

 

ok thanks, ill try that. does that mean the computer is still reading theres a bad egr even though the CEL is off? im not sure if its winter gas because i live in CA and it never gets below 35 where im at

 

You should do that anytime you do a mod that would affect the drivetrain and that includes maintenance. The pcm would eventually relearn that you changed the egr but it takes time.

 

Random thought...is that the same "secret way that some guy at the shop wants to charge me $62 an hour to do?

 

Probably.