So, I've had my ef for about 2 years now. I did the MPFI on my d15b and had no problems. Now a year later, every time I start the car it's pretty rough. It takes a split second for it to turn over and when it doessss.. It idles around 3ish and pulses. It does this regardless if it's cold or warm. It also does a lil 'misfire' at idle sometimes. I guess after the car 'warms up' (if that's what it's doing), It runs fine. I cleaned out the IACV thinking that might be it, but nothing changed with that.
Any insight?