Metering actuator issue

[Scoot5869]

Well did leak test and they all passed no bubbles. Actuators all passed ohm test. Swapped actuators and it still says rear bank actuator code. So when driving it’s not a constant rough run it is fine then goes to shi#t and engine light pops on then smooths out and it goes away. Bob tail it won’t do it at all but as soon as I hook to trailer it will act up. I tried to check the harness but I think I need a nicer multimeter bc I was having issues getting contact. The plug for the actuator look fine as well so I’m at a loss. I also ran the cit out test again no problems and did the injector test on insite as well they all passed.