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Misfire in Cylinder #1 under boost?

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LunarEclips

15+ Year Contributor
191
2
Feb 27, 2006
Corona, California
So i have a misfire in cylinder #1 and hardcore knock according to the codes that were thrown. Car idles fine and then when i drive off, it misfires under boost then damn near dies less than a block away from driving. I have a physically broken Map sensor but it doesnt throw a code for it being bad? I gotta check my plugs to see whats goin but my first thought is this broken sensor. The car is 95 gst completly stock. Please throw some ideas at me!!
 
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