Ok quick story, just finished swapping everything from a 04 Sti into my 01 rs. Only thing not swapped over from the sti was the fuel tank (mistake on my part). I also decide to do a few performance mods along the way. Apon start up I noticed it runs as it did before I pulled it from the donor car (nice). BUT If I blurp the throttle quickly it doesn't catch it's self at adle, It'll just completly die. Starts and idles just fine as long I dont blurp it. Now if it's in it's "warm up cycle" I can blurp the throttle and it acts like a normal car catching it's self at idle normaly. I can drive it in my driveway as long as I feather the throttle and catch it before it falls on its face. Please take note this car has not left my driveway since the swap and performance modifacations were done. The only CEL I have is p1446 - no dtc definition found <---but this is due to me runing a rs tank (will be tunned out later)
(((please keep in mind all of these mods were done at once and there has been no tune since I did said mods)))
Ej257:
1. Fmic (bov venting 100% atmospheric )
2. After market up pipe
3. Perrin catless DP
4. custom catless 4" exhaust
5. Eliminated rear o2
Things i've tried:
1. Spraying various vacuum lines and anywhere i could think of with carb cleaner to check for vacuum leaks...results= Nothing
Questions:
1. Is my atmospheric venting bov causing my motor to fall on its face because the ecu isn't seeing the additional air it's programmed to see? Or does that only effect the car when In boost . Considering a bov will only vent under pressure?
Any and all help would be appreciated