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What would your next step be? P0300
Posted to HD/Fleet Forum on 11/16/2011 14 Replies

I recently posted about this same van. I had a p0300 code and all bank 2 cylinders were missing, number 6 was the worst. after a little guidence from you guys getting me to look at the fuel trims I figured out it was a bad O2 sensor. So now its about a week la... Login to read more.

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car Vehicle Data

2003 Chevrolet Express 2500 6.0L

Engine6.0 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

2003 Chevrolet Express 2500 6.0L

Engine6.0 L
Trans4-speed Automatic (Electronic)