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International Automotive Technicians Network
Re: Old School Test
Posted to Emissions Forum on 8/4/2019

This past Thursday I had a 98 Honda Accord that failed Nox, demonstrated very low Nox readings with EGR disabled,and engine would stall abruptly if vacuum was applied at idle. I made a WAG,and removed EGR's intake plugs. At least 2 were completly plugged up. C... Login to read more.