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Discussion Starter #1
I was finishing up some tuning for e85 on my car, and took it out on the street to do a pull. Let the car warm up by driving it until my coolant temp and oil pressure looked good and let her loose. The car started bucking, almost as if there was wheel hop. Roads were dry so I know it wasn't. Then, it almost disappeared. I attached a log that shows the example of the stutter, and then the second log taken about 10 minutes after the first log was taken. Has anyone seen this before? Why is it happening? Ughhhh
 

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Discussion Starter #2
I forgot to update this. I had a cracked spark plug. Upon first inspection I didn’t notice it but after I double checked, I noticed the broken plug. After I swapped them out the issue disappeared. Check your spark plugs!
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