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Any long term issue with not having the Mass Air Flow sensor plugged in?

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Discussion Starter · #1 ·
My 99 Grand Prix has been stedily running worse and yesterday wouldn't maintain 80mph. I unplugged the lead to the mass airflow sensor and it immedietly started idling properly and brought back huge power in the engine. I forgot that it would smoke the tires when I first got it till yesterday! Gas milage increased also. What if any long term effect to not replacing the MAFsensor?
 
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