new egr and O2 sensors but the service engine soon light just stays on....any advice

 

have you checked the vacuum line to the EGR?

 

you have to clear the codes after you put the new egr and o2 on and then drive it somewhere and cut it off then crank it back up if the light is still on hook the computer back up to it an see what it says then

 

I hope you cleaned the egr tube, There also is a port hole that goes from valve to tube. buy 3 cans of throttle body cleaner, take of intake, and get some super long brass bottle brushes and scrub away.. now you wont get all the way down but get as much off as possible. In the future i run seafoam through my brake boost vacume line to the intake and dump about a whole can in slowly. have someone on the gas peddle incase it starts to die. i do this about 2 times a year to keep intake, egr, and valves clean. also attached a oil catch can, but that might be going a little overboard.

 

http://www.youtube.com/watch?v=bi5DTt3aB1E