Re: 97 Ram 2500 / P1398 Misfire Adaptive Numerator at Limit?????????

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Posted to Technical Discussion Forum on 12/6/2004

Guy,

As Matthew stated in his post, TSB 25-003-01 should answer all your questions regarding P1398.

It states:

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This condition may be caused by a momentary drop in the supply voltage to the PCM

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