Knowledge Base:  

Knowledge Base : the ugly fix
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How does the Ugly Fix work for Detroit diesel or Cummins ?
The barometric pressure sensor on the engine regulates altitude and direct the EGR accordingly. (open low altitude or close high altitude) The Ugly Fix™ works by changing the circuit flow to the ECM
How does The Ugly Fix clean up the oil?
It cleans the oil by stopping the carbon and acid flow. Without the EGR operation the carbons and the acids flow out the stack instead of cycling through the engine, which gets past the piston rings a
Does The Ugly Fix clear the existing EGR codes.
No It won't, it will have to be cleared before the installation.
Will the Ugly Fix hurt the turbo? Cummins or Detroit
No. it will not harm the turbo. We don't push it past the limitations set for the turbo. It will save or prolong the turbo life because of the movement of the inner and outer working parts. It fluxes