- Jan 4, 2015
- 20
- 0
- 1
I just completed doing the swap to the A9P computer on my 88 mustang. I ordered the conversion harness from lmr and also got a bbk MAF sensor. I put everything back together but when I started it up it was a little rough at idle but never died out. It stayed somewhere about 600rpms I would say. I could tell it was definitely lower than usual. Is this a sign of anything or will I just have to play with the idle air control?