I have a 1990 buick riviera and I have a check engine light on with a Code 26?

  • Thread starter Thread starter Kevin B
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Kevin B

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Quad-driver module/Quad-driver No.1 erro. What do this means. my car idle kinda funny some times but it runs good. What could be the problem. 1990 buick riviera 3.8 V6
 
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