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Here's the TWO SENSORS YOU NEED TO REPLACE FOR BETTER IDLE !!
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MAF Sensor Failure! $800 Pontiac Grand Prix GT Almost left Me Stranded! Clean or Replace to Fix MPG
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OXYGEN SENSOR REPLACEMENT GM 3.8l V-6 SERIES 2 (BANK 1 SENSOR 1)
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NEVER Change Another O2 Sensor Until You WATCH THIS!
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Chevy/Buick/Pontiac p0300 misfire fix
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