SR20 bad misfire

[dorikin717]

hey guys im in need of some help asap, iv searched all over the place and cant find anything.

so on to my issue, i got my swap done, car idles fine but its a bit choppy nothing that bad. but as soon as i go to drive it and give it more than a quarter throttle i start to get what seems like misfire, and it will back fire a few times. i would just like to find out what it could be, iv replaced the plugs, tested the injectors, and made sure all the coilpacks are good.

parts:
stock sr
greddy ic core
cxracing ic piping
POS greddy knock off bov
vision fpr


if anyone has any guesses a comment back would be much appreciated.

thanks in advanced

[tabasco122]

what rpm does it cut out at? if its 3k, its your maf most likely.

[OkiDori17]

timing
check mechanical and the cas
i had the same problem after my swap. i checked the timing and it was off by a couple teeth, after fixing that it ran perfect

another good thing to check for is boost leaks.

hope that helps =]

[dorikin717]

I was thinking timing too, and it dosent cut out at a rpm it depends on how much throttle im giving it, i can get it to rev all the way out if im super easy on the gas.

[dorikin717]

Also another weird thing that happens is, when the car is at idle i can hear a relay going on and off altering my rpms any ideas? Its on the drivers side fuse box.