I developed a fuel trim issue a while back and have been having issues nailing it down. At cold start my fuel trims are fine but once I’m driving at operating temps my fuel trims sit around 18 at idle. It sees to vary drive to drive beetweem +16 and 20. Fuel trims get better when I’m driving but...
trying to help a friend figure out how to squash a po245 code swapped out to a brand new cs 3 port in interrupt mode brand new vacuum lines and the plug has 12v key on and has continuity to ground at a loss on what could be wrong
