Deleted 6.7L Gen 4 RAM.
The exhaust brake worked dependably but squealed loudly because of the exhaust leaks at 3 exhaust ports due to a wARPed manifold.
After replacing the exhaust manifold and the gaskets and reassembling it all, it seems to run great, but with a lot more black smoke than it used to have, and the exhaust brake no longer works.
We did not touch the wiring to the turbo during our manifold replacement, but have since disconnected and reconnected them without any change.
There are NO CODES being thrown and after reading about how the system functions.
I removed the actuator from the side of the STILL INSTALLED turbo in an attempt to see if the turbo vane lever was stuck and it moves freely.
so how does one go about testing the actuator to see if it works?
Or test the wiring to see it there is a disconnect somewhere?
Thank you
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