well today I fixed my TPS thanks to you guys, but after driving for 5 min my check engine light came on again. I did the diagnostic and it showed 1 long flash and 2 small ones, which equals 12. I checked what 12 means and I got EGR System? Does anyone have any links on HOW TO's for EGR, what I need to do, is something cloged up or do I need to replace the EGR valve? Thx guys

If so where is EGR located?