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Re: P18BC00 Troubleshooting
Posted to HD/Fleet Forum on 2/5/2020

Took off the DEF injector, the tip was clogged. Cleaned the injector, preformed the spray test. Tested the DEF fluid was good 32.5%. Put it all back together, code went stored. Cleared the engine light. Went for a drive while reading NOX sensors. Everything lo... Login to read more.