If its the VQ 3.0 V6 then the ignition timing is done through the ECU via timing sensors. Here is a web site that has workshop manuals you can download for free. I have downloaded them for my 97 Nissan Maxima. https://manuals.co/workshop/nissan/maxima
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If its the VQ 3.0 V6 then the ignition timing is done through the ECU via timing sensors. Here is a web site that has workshop manuals you can download for free. I have downloaded them for my 97 Nissan Maxima. https://manuals.co/workshop/nissan/maxima