Boost pressure related derate
01-16-2023, (Subject: Boost pressure related derate ) 
Post: #1
Boost pressure related derate
2005 ISX 15, demandated. When boost pressure reaches 34 lb it will derate to 20 lb or less. Comes back slowly in about 20 seconds. Just started at mandate removal. Engine runs so much better at low RPM but have to be careful with the throttle on hills. Any help would be greatly appreciated! Thank you so much
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Boost pressure related derate - Dragonfoot - 01-16-2023



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