Just bought a slightly used Kinetix manifold and put it on today. Everything went pretty smoothly and fit nicely but the (SES) light came on. Hooked it up to an ECU at Valvoline and it showed 4 codes. 2 from throttle body and they couldnt tell me what the other 2 were. This because the ECU is not used to the mod or should i get it check further? They deleted the codes and they didnt come back and car seems to be running good...

Just wanna be doin some of this--> without having to worry.

-Thanks, Mike

 

I just put the kinetix plenum and it threw P0420, Does anybody know what it is?