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Re: MBE900 Fault Codes
Posted to HD/Fleet Forum on 1/18/2018

We bit the bullet and purchased the new DiagnosticLink software. CEL finally came back on. Had 2 active fault codes: 3251-16 and System code #4, S154/0. Started a regen and found fuel comp pres. only getting to 45psi. Have the check valve on order. Is the a di... Login to read more.