Hi, I am new to this forum and am looking for some advice. I have a 2000 Grand Prix 3.1 Cylinder with around 125,000 miles.
Here are the codes. I got a total of 6 codes, but I'm guessing this might be because I had to go back and get it scanned again?
(2) P0401
(2) P0404
(2) P1404
Edit: I got the EGR Valve soaking in Carb Cleaner right now. Well the bottom half of it. Is that the proper way?
Thank you.