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Re: 86 Honda Civic 1.5 Manual NOx faillure at 15 MPH ASM
Posted to Emissions Forum on 3/20/2001 3 Replies

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Ive had several. Primary symptom is 3-5 inches of supply vacuum to the valve on hose 14(or is it 16?) coming from the black box. You can test that the valve will open at usually around 7-8 inches of v... Login to read more.

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