I just had a local shop change my water pump, hoses, thermostat, etc.
I removed the MM3 from the truck for safe keeping.
Prior to taking the truck in my MM3 read my fuel rail pressures.
I drove the truck for about 50 miles after picking it up from the shop, no problems noted.
However, now that I have hooked the MM3 back up the fuel rail pressure readout is showing NA (I assume Not Available).
I do not have a clue where to start looking with this problem.
No CEL and the truck is running fine.
This morning I will unplug the MM3 from the OBD port, and all connections and then plug them back in?
I have been searching but have not found any viable info regarding this problem.
Any info or guidance would be appreciated!
Thanks!
Travis
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