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Re: 97 Acura 3.0 CL Code P0401 (EGR Insufficient Flow) Test Critera?
Posted to Technical Discussion Forum on 8/3/2000

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Hi Tim,

I've had a couple of these with the same code. On the couple that I fixed, it turned out to be the contol solenoid that controls vacuum to the EGR valve, (sometimes sticking closed). Double ... Login to read more.