I converted my 88 Mustang to mass air with Pro-M kit now it stalls when it is cold and idles rough around 600 rpms. Double checked wiring...anyone have any input?
A9L is the computer that I put in it, the one that was in it, not sure. I soldered all the connections. It has stock injectors and throttle body. After warming up it runs fine but it has a backfire at lower rpms when I give it gas sometimes. I'm not sure what else to do with it any ideas?
Is this a fresh install ? If so, can you get help from customer service ? It sounds like the sensor that detects cold air/water temp isn't functioning or getting the signal back to the computer to compensate.