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Re: Isuzu 4HK1 P2000
Posted to HD/Fleet Forum on 9/18/2020

I'm not sure about the Isuzu but I've seen a similar issue on other diesels, the dosing injector may be leaking while closed. On the bigger stuff I pull the dosing injector out while keeping the fuel line hooked up (or rigging a line) and command an injection ... Login to read more.