hey so ive been having problems with misfire and back fire and super rough idle also i start it up pushing on the gas give it some good revs but dies right after it come downs and when i do get it going the throttle sluggish and take for ever to catch up so switched out the spark plugs gapped them correctly and installed them still didnt fixed it so im thinking my fuel injectors and idk cant figure it out im new to the evo x engine dont know much any help will be greatly appreciated
mods are Engine Mods

*ETS upper and lower intercooler pipes

*Grimspeed electronic boost controller

*ETS 3.5 inch front intercooler

*ETS extreme V3 full exhaust

*ETS test pipe

*AMS widemouth downpipe

*AMS intake

*NGK plugs (newer)

*Cobb accesport

 

also check all vacuum lines all my pipes and fuel pump relay

 

Get a tune

 

Hi,

AMS intake has larger diameter(3 inches) than stock intake(2.5 inches). At least you have to adjust MAF scaling table.
Also you have to adjust the boost control tables for your 3-port ebcs. Unless proper adjustment, over boost occur at wot.

Please make sure your accessport settings match for your intake and 3-port.

 

how would i adjust those would i need to get the tune program?
and i already have a tune

 

If you used accessport youself to flash the rom provided by cobb tuning, please contact cobb tuning and ask whether your rom is match with your mods. If some tuner tuned by accessport, contact the tuner.