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EPA de regulation roll back.

GreenGO Juan

Standing on the edge of forever.
Full Member
Minuteman
May 27, 2021
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Milky Way Galaxy
What's the effect on an engine designed to use DEF if you don't put DEF in it?
DEF is sprayed into the exhaust as part of the catalyst process. A factory ECU, when the tank goes empty( and other emissions related components) will put you in a fault mode, pull power, limit speed and eventually shut the engine down.

Its the EGR that causes issues in the engine as diesels are direct injection, the intake and valves get "sooted" up.
 
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