S1cTech

so after putting it off for like 2 years I have finally got around to doing it. Hope it is worth the pain I am about to go through. Also. What I find is weird is I seafoamed my car like 3 times past few weeks and the EGR code went away. I dount that cleaned out the tube after seeing the ones on here. lol...

but how can I know for sure everything will be working properly after the tube is cleaned? I havnt gotten a CEL at all past couple hundred miles since I last cleared them and seafoamed. Does the EGR go up to 400miles to throw a CEL? I remember it doing that once.