This code occurred after the first hour of idle time. New sensors all around and new harnesses. Runs rough from idle to 1000rpm then clears up. Icp is reading 600s at idle and 800s at 1000rpm. And the ipr is at 25% to 30%. My injector pulse width is .90-1.09. ficm 48-48.5v. and 13v going into the ficm. I did delete code once but came back 10mins later of idle time.