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Re: 2007 4300 DT466
Posted to HD/Fleet Forum on 7/27/2020 2 Replies

Post the VIN, your on the border between EPA04 and EPA07. Somewhat different problems.. EGR valves stick on these and often don't code. Either year. If it is EPA 07 it has an ITV. They will drift down and not code. Can be run without ITV it for test. Stay clea... Login to read more.

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