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Old 09-15-2019, 07:08 PM   #20 (permalink)
Block Heater
rickbat's Avatar
Join Date: Aug 2019
Location: Export PA
Posts: 17

Something is not allowing the ECM to command fueling. You can see its only asking for 7.4k at 80% throttle. So thinking either something is putting it into limp mode or some parameter in the ECM is not getting met to command fuel. I have a boost check gauge will look at that again a little closer.

2002 Duramax LB7 220K

Bosh injectors at 153K
CP3 New Bosh at 220K
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