91 22 RE spark knock problem

I have a 91 22 RE, I'm getting a lot of spark knock during acceleration, anyone had this problem and found a solution

Check timing. Check spark plugs http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

Make sure intake is clean. Try a higher octane gas. When was the last tune-up?

Check timing. Check spark plugs http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

Make sure intake is clean. Try a higher octane gas. When was the last tune-up?

the last tune up was a year ago..I checked the codes and found 13 and 43, code 13 is the distributor circuit/ ignitor so that maybe whats causing the spark knock