Knowledge Base:  

Knowledge Base : pressure
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Will this product cause head gaskets to release because of to much turbo pressure?
No, The fact is the turbo boost sensor will keep the turbo from spooling to much boost. That is what it is designed to do.
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