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Re: Old F350 with no EGR till 55mph: NOx failure
Posted to Emissions Forum on 3/31/2014

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Not really. That is the GVW and this truck only weighs 2200 lbs on the back axle. If the original smog tech had run it as a 2 speed idle, I suppose we would be ok. But now, I think to run it that way... Login to read more.