i just finished installing my headers on my 2010 gt. at first i only plugged in the front o2 sensors knowing i was getting a tune very soon to turn off the rear o2. well on my 07 gt i ran it like that for a long time and never had any problems. i went to start it up and she fired right away but it ran like i had a set of stage 3 cams. so i shut it off and began looking for ways to get my rear o2's plugged. after rerouting some things i got all the o2's hooked up and i went to start it again....and she barely wanted to start and after a minute of running it stalled out. i went back and checked my intake and made sure everying was plugged in and routed right. all was good and yes the mass air is plugged in lol. im really at a loss right now and have no idea what its doing. btw i do have a check engine light and i dont have my tuner yet so i have no idea what it is. any help would be great. thanks!

 

just restarted it, pulled it out of the garage and the tool light came on and it went into limp mode. i just pulled the ground on the battery reboot it right before so the cel would go off....wtf now

 

Check your vacuum lines. Especially the one that goes to the brake booster.

 

you are running a CAI that requires a tune without a tune...put stock intake on

 

If you havent done it yet, check all around your cai, make sure there are no leaks. Double check all those connections again. Any chance you undid any other electrical connections? Ultimatly call brenspeed and order that sct and tune.

 

figured it out, the mass air plugged in to the harness in 2 spots and i missed the one under the intake box. plugged it in and she runs great. now i just need to get the mid pipes adjusted. i spent 2 hours trying to get them right and absolutely can not get them. the passenger muffler tip rubs the bumper, the driver side midpipe is twisted down and hangs really low. it looks way out of wack but i cant twist it up any more because its already rubbing the transmission crossmember. ive got it pulled almost to far from the header and it still looks like it needs to go back a good inch. i hate the design of he mid pipes because there not an x-pipe or h-pipe, there just connecting pipes that run seperate from each other. i wonder if i can buy another x-pipe from another company that would work? btw there stainless works

 

It says Soon to come C&L in his sig

 

I've never heard anything about that brand of headers, but I've seen how expensive they are

 

thats cause he changed it

 

It usually is something simple like a connection......good job finding it. Any chance the midpipes are labeled wrong? My pypes midpipes were and it took a few minutes to realize it when I was installing them.