need your help guys

[franky69c10]

i have a 87 350 tbi that runs good the only problem is when the check eng light comes on after driving for 30 min or so it runs like crap like it bogs down when i take off from a red light i got to floor it to move i check the eng codes and found 2 codes one of the them is the EGR valve and the o2 sensor could the egr valve make it bog down..... i was thinking it could b the TPS sensor what do u guys think it could be