My Car is running rich, seems odd starting idling and misfiring after I did my service on it recently I did and oil and filter change, recharger the k and n filter, cleaned the maf sensor, changed the transmission oil, rotated the tires, and changed the front transfer case fluid. Any ideas of why my vehicle is acting up, did I possibly recharge the k and n filter wrong or sum or is it cause I need to diagnose the p0172 code I NEED ANSWERS😭