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Re: 91 Honda Accord NOX fail, bad ECM?
Posted to Emissions Forum on 10/21/2007

Hi Kevin,

You make a good point, I have always tested the car warmed up for EGR flow , but I did not manually check ECT, as this vehicle has no data stream so I should have checked ECT & IAT at the sensors. Also BARO and MAP should be looked at.

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