Hey, my 3.1 has been idleing real rough, and when I start of the line the tach will jump to about 2500rpm then go back down, back and forth. I first changed the spark plugs, wires, and coil (it needed to be done anyway). This would become even worse if I tried turning on the AC. So one day I took off the wiring harness to the alternator and everything smoothed right out. Hoping is was simply a bad alternator I went and replaced it. Now the car idles fine, but acceleration is still irradic. Is there anything I can do about the wiring/ check anything else?
Thanks