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  1. fireman13

    1991 Buick ecm

    Hello I am new to the forum and buicks. I have just aquired a 1991 Buick Regal GrandSport with a 3.8l engine. The engine was running rough and stalling at idle when I got it as it was not run for 7 months. Service Engine Soon light was on and I ran codes and got code 34 MAP sensor and code 41...
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