Question about 1988 Pontiac Grand Am

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I have D26 code and do I need a new computer?

I can't get in with my scanner won't let me in

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This is a obd 1 system, you need a scan tool that is obd1 compatable, but having the blink code is just as good. The diagnosis for this is fairly complex and can't really be conveyed in a text. In general however, if you have other active codes (53 or 62) fix them first. It also may have been self induced. If it is the only code clear it and confirm that it comes back on is own. Also, check for a poor ecm ground...not sure where it is on this car...very commonly found at the thermostat housing stud.

Posted on Nov 26, 2014

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Posted on Jan 02, 2017

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