Medium and Heavy Trucks
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Hi my name is***** will be glad to help. Check the injector harness for problems or you have a faulty injector. Try swapping cylinders to see if the problem moves with it to confirm.
Injector Drive Module (IDM) is unable to
compensate for rough idle using cylinder
balance - Cylinder 7-OR-Open circuit
between the high side driver and the low
side return - Cylinder 7