Hey I just recently got this code like 2 mins after getting my catalytic convertor fixed. Resettled the Cel light and it cam back on the next key cycle. I went back to the mechanics and the code they gave me was p2004. I want to fix this myself but I need someone to literally baby step me, even using pictures if they can. I know that the code has something to do with the imrc but with my lack of experience I can't find it. Can anyone help me locate the imrc, give me ideas on what may be wrong with it and give me some solutions. I feel one I located the imrc I can approached the solution better.
My car is a 2003 ford focus wagon 2.3l engine is that helps