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Re: 1997 Honda P0441, etc. is PCM Bad?
Posted to Technical Discussion Forum on 10/21/2018

Thanks

Comports with what we are seeing .. about a 82ms turn-on to turn-on

But like you see in your example we'd expect about a 23 ms or about a 28% duty cycle and we have only a 0.04% DC !!!!

Not enough to drive the proper purge flow hence never passes ... Login to read more.