93 grand prix how to understand digital mode reader on dash
what digital fuel mode gauge? do you mean the fuel gauge? please send a pic of what you are talking about I will walk you through it.
Here is the owners manual...https://my.gmc.com/content/dam/gmownercenter/gmna/dynamic/manuals/1993/pontiac/grand_prix/1993_pontiac_grand_prix_owners.pdf
Are you talking about the in dash computer that tells you mileage, fuel left etc? What specifically is your question. You owners manual should answer all your questions.
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