2001 Suburban 5.3l multiple engine codes
 

Hi all I was curious if I could inquire some help finding out what might be the issue of my car. This morning I drove about 300 miles with no problems, once arriving at my destination I turned my car off for a short while only to return and go for another short drive of about 10 miles. While on this drive my Service engine light came on but the car seemed to have been running normally. I pulled the codes later that day to find P0157, P0302, and P1258. I thought it was strange to see all these codes with no issue to the car drive wise after they appeared. My coolant temp did not rise, my car did not appear to lose power, and it is up to date on general maintenance. My car just rolled 166k. Any help would be wonderful!

PS. I am new to the forum!