i went to the street races yesterday and wasn't good i lost to a 94 prelude with I/H/E first i thought it was my tires. but then i was racing with my check engine light on, i thought it was just my second o2 sensor, but when i checked it today it was codes 63, 71, 72, 73, 74.
code 63 is second o2 sensor
code 71-74 i think was misfire.
can the codes 71-74 retard the motor?

 

OMFG...........

 

check engine light was on before i ran the prelude

 

This is gonna get U-G-L-Y