1993 Onboard Computer Question

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JF5000
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1993 Onboard Computer Question

Postby JF5000 » Mon Jul 11, 2016 9:02 am

Hello! This question has already been asked I’m sure. I also searched the forum prior to making this post and was unable to find an answer. If someone could point me in the right direction I would really appreciate it.

Situation: 1993 Pathfinder sat for 1 year without a battery. Replaced the battery and now the vehicle runs a little rough and does not idle well (low idle). My initial assessment is that the onboard computer has forgotten the settings for various electronic components.

Question: Will the computer learn the proper settings after several driving cycles like some cars do? Or will this require a manual solution?

Again your help in this matter is appreciated. V/r James


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smj999smj
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Postby smj999smj » Wed Aug 31, 2016 5:43 pm

The ECM has a base setting with a self-learning capability. That means when it loses the memory for whatever reason, it utilizes its base settings and does not have to be "re-learned" like some cars did back in the day, notably some GM's.


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