Question about 1990 Pontiac Grand Am

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What is 1990 Pontiac trouble code 65

1990 Pontiac Grand Am 2.3L Quad 4, check engine light, DLC code 65. I cannot find a definition For a 1990 Pontiac quad 4 code 65

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Type: OBD 1 & your codes

OBD1 GM Code 65

Posted on Nov 13, 2014

Testimonial: "GM Code 65 is right bank O2 Sensor. Does not apply to a motor not manufactured by GM. The Quad 4 is manufactured by Mercury Marine for GM. I need to know code 65 for a 1990 Pontiac Quad 4."

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