car keeps wanting to fast idle around 1500 rpms eventually get check engine with code po 122 low voltage input. have replaced tps, iac and temp sensor to no avail. if i unplug the tps and iac and plug back in. idle returns to normal for a few hours. may go days with no problems then bam, idles up check engine slow shifting. i have an odb2 scanner. is there something i should look for on live scan or could this be a bad ground.
Nov 23, 2009 at 8:47 AM
