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Removed throttle valve butterfly plate & got CEL. Why?

1011 Views 1 Reply 2 Participants Last post by  seanth468
I have a 2008 Dodge Ram 6.7 cummins. I plugged the ERG crossover pipe and removed the throttle valve butterfly plate. All components are still plugged in, but after driving 1/4 mile I got a throttle valve light and CEL. Why am I getting these lights as all components are still connected?
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