having issues with the kwsc and j's racing header. after install there is a misfire on spot one even after changing to colder plugs.

 

Unfortantly I dont really know what to tell you. Othere then the S/C, header and colder plugs what other engine mods do you have?

 

I would look at replacing your coil pack. Try to borrow one from a fellow fitfreak. That way if it's not the coil pack, you didn't waste $70 per cylinder. But I have this gut feeling that it is. I had to replace 3 of mine within 50k miles of my car.

 

the only other mods that i have are the spoon b piping and an apexi ws exhaust. the only time i get a flashing cel light is when i go full throttle but as soon as i let off it goes away.

 

Sounds like a coil pack all right. It hasn't thrown a steady CEL, just flashing and then fine?

 

did u contact KW? that should always be the starting point. next thing i would do is check the plugs. could possibly be the coil, but check plugs first, make sure they are tight and make sure it is gapped properly... i know they come pre-gapped but you never know.

 

yeah it doesnt keep a steady cel and the next thing i was going to do is call kw themselves. yeah checked the gapping and it is the correct gap. the cell was on witht the oem plugs so i switched it to the denso ik22's but still flashing cel when pushed hard.

 

yup sounds like the coilpacks. Find a fitfreak down in SD that will swap coils wit u for an hour or 2. it's pretty easy to do and will give u ur answer.

 

yeah i have to find someone that will change with me for a little bit. new to the area so ill have to find someone

 

yea its a coilpack then.

 

With the added exhaust flow from all of the changes, and the statement that it only cuts out and shows the CEL at full throttle and ran well otherwise.... I am thinking you are needing bigger injectors and are leaning out ..... Your engine with the KWSC base kit is starving for fuel with the exhaust system you have at full throttle.....