hey guys ive just got this problem i drive a 2004 wrx impreza. this problem has just occured recently. When i start my car up and leave it to idle bout 10-15 secs into ideling my car will will almost stall but then revs kicks up again n then stalls. I was just wondering if you guys can help me with this issues my dad said i prob need a tune up but i just want a second opinion.

thank you