Originally Posted by bificus
Either that or AFM. ECU kicks in full fuel after 2800 rpm (iirc) correct me if I am off on that. So off idle to then on part throttle AFM is controlling fuel.
Thanks all. AFM seems to check out and Ive played with the TPS as well without noticeable improvement. NI found a post from someone who had similar issues. He said that he found that 5th cylinder stopped firing after about 2000 rpms after car warmed up. I was curious so I checked. I have the same thing but on 1 and 2. He states that he replaced the ignition control unit and it solved the problem. Im going to see what that does.
1983 Datsun 280zx Non-Turbo