I installed a header lastnight over a friends house. we drove around the block after install and i drove it home about 10 miles away with no problems. Today my girlfriend drove it to work and she calls me saying the check engine light came on. Anyone know what it might be? The install of the header looked fine with no leaks.
Does the ecu need a reset by chance?

 

the search button works wonders....

did you guys put an anti fouler plug or two on the air sensor connected to the s-pipe?

 

search "CEL header" or "anti-fouler"

 

too much flow for the o2 sensor.. search the anti fouler trick like they said ^^